The Pin,shoulder,headless, cataloged under National Stock Number 5315-01-173-1239, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is Theon Sensors Single Member S.a.. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5315-01-173-1239 |
| Primary Part Number | 129-120 |
| Item Name | Pin,shoulder,headless |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Theon Sensors Single Member S.a. |
| Status | ACTIVE |
| Shank Diameter | 0.190 INCHES NOMINAL IN |
| Second Shank Diameter | 0.1245 INCHES MINIMUM AND 0.1255 INCHES MAXIMUM IN |
| First End Location | SMALL END |
| Thread Length | 0.250 INCHES NOMINAL IN |
| First End Style | SQUARE |
| Shank Length | 0.250 INCHES NOMINAL IN |
| Style Designator | SHOULDER |
| Material Document and Classification | AMS 5640 TYPE 1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Second End Relationship with First End | NOT IDENTICAL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Shoulder Diameter | 0.1835 INCHES MINIMUM AND 0.1875 INCHES MAXIMUM IN |
| Second Shank Length | 0.630 INCHES NOMINAL IN |
| Second End Style | SQUARE |
| Thread Class | 2A A |
| Material | STEEL COMP 303 OVERALL |
| Thread Series Designator | UNF |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5315-01-173-1239 is a Pin,shoulder,headless, manufactured by Theon Sensors Single Member S.a., classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-173-1239 has 2 manufacturer part numbers on file: 129-120 (Theon Sensors Single Member S.a.), 15011032 (Bae Systems Australia Limited).
1 possible match (shared part number, not a government interchangeability claim): 1440-01-712-2869. Verify interchangeability with system specifications before substitution.
Key specifications for 129-120: Shank Diameter: 0.190 INCHES NOMINAL IN; Second Shank Diameter: 0.1245 INCHES MINIMUM AND 0.1255 INCHES MAXIMUM IN; First End Location: SMALL END; Thread Length: 0.250 INCHES NOMINAL IN. 17 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.