The Stud,shouldered, cataloged under National Stock Number 5307-00-208-1173, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 24 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5307-00-208-1173 |
| Primary Part Number | 237210 |
| Item Name | Stud,shouldered |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Surface Treatment Document and Classification | AMS 2416 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Cotter Pin Hole Diameter | 0.065 INCHES MINIMUM AND 0.072 INCHES MAXIMUM FIRST HOLE IN |
| Nut End Shank Diameter | 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN |
| Thread Length | 0.348 INCHES NOMINAL STUD THREAD IN |
| Thread Length | 0.695 INCHES NOMINAL NUT THREAD IN |
| Hardness Rating | 30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM |
| Style Designator | SHOULDERED |
| Material Document and Classification | PWA 722 FSCM 61858 MFR REF SINGLE MATERIAL RESPONSE |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.312 INCHES NUT THREAD IN |
| Nominal Thread Size | 0.312 INCHES STUD THREAD IN |
| Shoulder Diameter | 0.395 INCHES MINIMUM AND 0.398 INCHES MAXIMUM IN |
| Surface Treatment | NICKEL OVERALL |
| Nut End Shank Length | 0.410 INCHES NOMINAL IN |
| Thread Class | 3A STUD THREAD A |
| Thread Class | 1A NUT THREAD A |
| Thread Quantity Per Inch | 24 NUT THREAD |
| Thread Quantity Per Inch | 24 STUD THREAD |
| Material | STEEL |
| Shoulder Length | 0.080 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN |
| Thread Series Designator | UNF STUD THREAD |
| Thread Series Designator | UNF NUT THREAD |
| Distance From Cotter Pin Hole Centerline to Nut End | 0.100 INCHES NOMINAL FIRST HOLE IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 237210 | Aircraft Components and Fasteners Inc (USA) |
| 237210 | Thompson Aerospace, Llc Dba Thompson Aerospace Llc (USA) |
| 237210 | Form Fit & Function Llc Div F3 (USA) |
| 237210 | United Precision Products Co., Inc. (USA) |
| 237210 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 237210 | Precision Speed Manufacturing, Llc (USA) |
| Reference | Meaning |
|---|---|
| 237210 | 5/2 Secondary reference U.S. Government activity |
| 237210 | 5/2 Secondary reference U.S. Government activity |
| 237210 | 5/9 Secondary reference Turbo Power & Marine System Inc Sub of United Technologies Corp |
| 237210 | 5/2 Secondary reference U.S. Government activity |
NSN 5307-00-208-1173 is a Stud,shouldered, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5307, Studs. Status: active.
NSN 5307-00-208-1173 has 6 manufacturer part numbers on file: 237210 (Aircraft Components and Fasteners Inc), 237210 (Thompson Aerospace, Llc Dba Thompson Aerospace Llc), 237210 (Form Fit & Function Llc Div F3), 237210 (United Precision Products Co., Inc.), 237210 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney) and 1 more.
1 possible match (shared part number, not a government interchangeability claim): 6685-00-858-8862. Verify interchangeability with system specifications before substitution.
Key specifications for 237210: Surface Treatment Document and Classification: AMS 2416 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Cotter Pin Hole Diameter: 0.065 INCHES MINIMUM AND 0.072 INCHES MAXIMUM FIRST HOLE IN; Nut End Shank Diameter: 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN; Thread Length: 0.348 INCHES NOMINAL STUD THREAD IN. 24 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.