The Pin,keeper, cataloged under National Stock Number 5315-00-421-3931, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-00-421-3931 |
| Primary Part Number | 10899991 |
| Item Name | Pin,keeper |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| FSC Application Data | VEHICLE WINCH MECHANISM |
| General Characteristics Item Description | METAL WELDMENT OF PIN,FSCM19207,RPN10899992,AND PLATE,FSCM19207,RPN10899993 |
| 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 |
|---|---|
| 10899991 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 2590004213931 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 2590004213931 | 5/9 Secondary reference E.c.a Etablissement Centrald'approvisionnement Des Forces Armee |
| 3004794 | 5/9 Secondary reference Garwood/feller Inc Garwood Winch Div |
NSN 5315-00-421-3931 is a Pin,keeper, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-00-421-3931 has 1 manufacturer part number on file: 10899991 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 10899991: FSC Application Data: VEHICLE WINCH MECHANISM; General Characteristics Item Description: METAL WELDMENT OF PIN,FSCM19207,RPN10899992,AND PLATE,FSCM19207,RPN10899993; End Item Identification: 23200508841. 2 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.