QuotedPartCost guides · Updated 2026-10-30
How much does a custom machined 316 fitting cost?
Price one of your own parts: Drop a STEP model or PDF drawing — about 90 seconds, no account.
Your part priced in about 90 seconds, no account.
This fictional 316 connector is $102.47 each at five pieces, $27.12 at fifty and $15.56 at five hundred. The estimate includes a through bore, one external-thread allowance, a groove and passivation. It does not establish a pressure-rated pipe connection or include mating hardware and seals.
See how QuotedPart connects to your workflow with its API, MCP server, autonomous quoting and shop-specific learning.
Download and use
A custom connector is not a catalog fitting price
The body is 1.5 inches long. Its first inch is one-inch diameter; the remaining half inch is 0.750-inch diameter with an example 3/4-16 external thread. A 0.375-inch bore runs through the entire part and one circumferential groove is counted. The general tolerance is ±0.005 inch. Our pricing engine selects 1.125-inch round stock with standard facing and cutoff allowances.
The dimension schedule is a reproducible cost example part, not a released sealing design. Thread class, runout, groove dimensions, edge conditions and the mating seal must be approved before manufacture. Renaming this example a hydraulic fitting would not establish its pressure capacity. A tapered pipe thread requires different geometry and gauging from this straight external-thread allowance.
| Qty | Setup min/lot | Run min/part at qty | Stock | Setup | Machine/labor | Outside | Markup + floor | Sell/part |
|---|---|---|---|---|---|---|---|---|
| 5 | 149.8 | 7.90 | $5.53 | $42.83 | $10.51 | $19.95 | $23.65 | $102.47 |
| 50 | 149.8 | 7.90 | $4.08 | $4.28 | $10.51 | $2.00 | $6.26 | $27.12 |
| 500 | 149.8 | 6.08 | $3.02 | $0.43 | $8.10 | $0.42 | $3.59 | $15.56 |
Thread and cleanliness work should survive the quantity break
The standard turning route prices the steps, bore and groove. We add fifteen lot setup minutes and two minutes per piece at the $90/hour lathe center for threading and gauging. Bore flushing and edge review add ten setup minutes and 1.5 minutes per part at $55/hour. These entered allowances make the estimate more complete without pretending the thread cycle was derived from a fully specified thread drawing.
Eligible run time changes with the model's quantity adjustment, and the summary table shows the effective minutes. A validated every-piece cleaning or gauge check may not improve at that rate. Replace the generic adjustment with an appropriate operation standard when the customer's acceptance plan fixes the labor per piece.
| Operation | Rate/h | Setup min/lot | Run min/part | Other lot | Other/part |
|---|---|---|---|---|---|
| CAM programming | $95.00 | 23.5 | 0 | $0.00 | $0.00 |
| Turn, 2 ops | $90.00 | 81.3 | 3.3 | $0.00 | $0.00 |
| Deburr | $55.00 | 5 | 0.6 | $0.00 | $0.00 |
| Inspect | $75.00 | 15 | 0.5 | $0.00 | $0.00 |
| External thread and gauge, entered allowance | $90.00 | 15 | 2 | $0.00 | $0.00 |
| Flush bore and inspect edges | $55.00 | 10 | 1.5 | $0.00 | $0.00 |
Outside processing and purchases set the remaining boundary
Passivation uses a $95 lot minimum or the size-adjusted $2-per-piece catalog charge, whichever is greater, then a 5% fee. This explains why a five-piece order can carry a large finish cost per connector. The estimate applies 30% markup, a $65 minimum selling line and no automatic markup rules. Outside freight is additional.
316 stock uses illustrative $8.99/lb small-lot and $6.25/lb volume values with density 8.0 grams per cubic centimeter and a 0.28 relative machining input. These are not a current certified-bar offer. A production order needs its exact material specification, traceability requirement and usable bar length confirmed before release.
No pressure test, leak acceptance test, special oxygen-service cleaning, bagging, certificate package or seal kit is included. Add each required deliverable and its acceptance method rather than expecting a thread allowance to cover it. Compare a custom job with catalog hardware only after checking the functional specification, order quantity and available standard sizes; mass-produced fitting prices do not describe this small-run routing.
Connector inputs
- • 316 stepped OD1 ×1 in +OD0.75 ×0.5 in; Ø0.375 through bore; one groove; external3/4-16 allowance; ±0.005 in. StandardØ1.125 stock.
- • Quantities5/50/500; lathe90, CAM95, bench55, inspect75 USD/h. Extra thread15 setup+2 run min; flush10 setup+1.5 run min. Stock and quantity adjustment active.
- • 316$8.99/$6.25 per lb; passivation max($95,size-adjusted$2/piece)+5%; 30% markup, $65 floor, no rules. No pressure rating/test, seals, certs, special cleaning, tax or freight.
| Qty | Setup min/lot | Run min/part at qty | Stock | Setup | Machine/labor | Outside | Markup + floor | Sell/part |
|---|---|---|---|---|---|---|---|---|
| 5 | 149.8 | 7.90 | $5.53 | $42.83 | $10.51 | $19.95 | $23.65 | $102.47 |
| 50 | 149.8 | 7.90 | $4.08 | $4.28 | $10.51 | $2.00 | $6.26 | $27.12 |
| 500 | 149.8 | 6.08 | $3.02 | $0.43 | $8.10 | $0.42 | $3.59 | $15.56 |
Price one of your own parts
Drop a PDF drawing or a STEP file. QuotedPart reads the print, measures the model and prices it in seconds, on default shop rates you can change.
Your STEP file or PDF drawingDrop a PDF drawing, a STEP file or both
Free. No account, no email. Priced at our default US rates until you set yours.
Related QuotedPart guides
Cost guides
12L14 versus 1018 machining cost for turned parts
Our pricing engine comparison keeps the turned geometry and shop rates fixed while changing only the steel assumption. 12L14 usually wins on cycle time and bar pri
Cost guides
17-4 PH stainless machining cost with a quantity-break example
A small turned 17-4 PH stainless part in this estimate starts with slow cutting and a relatively expensive bar. The pricing engine computes setup, cycle, m
Cost guides
17-4 PH stainless price per pound for a machining quote
The US catalog starts 17-4 PH stainless at $7.30 per pound for a small lot and a lower volume price for full-bar quantities. On the sample turned pin, the
Cost guides
17-4 PH versus 316 machining cost and substitution
The same milled block costs differently in 17-4 PH and 316 because the catalog gives each grade a distinct stock price and machinability factor. The paired