The Buffer,recoil Mechanism, cataloged under National Stock Number 1005-01-453-9289, is classified within Federal Supply Class 1005 (Guns, Through 30mm) of the Weapons group. The manufacturer of record is Army, United States Department of the Dba Rock Island Arsenal Jmtc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 1005-01-453-9289 |
| Primary Part Number | 7266821 |
| Item Name | Buffer,recoil Mechanism |
| FSC / FSG | 1005 / 10 — Guns, Through 30mm |
| Manufacturer | Army, United States Department of the Dba Rock Island Arsenal Jmtc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 7266821 PRIMARY | Army, United States Department of the Dba Rock Island Arsenal Jmtc (USA) |
| 201040000 | Samsun Yurt Sav.san. Ve Tic.a.s. (TUR) |
| Reference | Meaning |
|---|---|
| 711662808602 | 6/9 Informative reference only Ncb Hungary (honvedsegi Egyseges Termekkod) |
NSN 1005-01-453-9289 is a Buffer,recoil Mechanism, manufactured by Army, United States Department of the Dba Rock Island Arsenal Jmtc, classified under FSC 1005, Guns, Through 30mm. Status: active.
NSN 1005-01-453-9289 has 2 manufacturer part numbers on file: 7266821 (Army, United States Department of the Dba Rock Island Arsenal Jmtc), 201040000 (Samsun Yurt Sav.san. Ve Tic.a.s.).
1 possible match (shared part number, not a government interchangeability claim): 1005-01-701-8536. Verify interchangeability with system specifications before substitution.
Key specifications for 7266821: Special Features: THIS IS AN ASSEMBLY THAT CANNOT BE ORDERED AS AN ENTIRE ASSEMBLY, YOU MUST ORDER THE INDIVIDUAL DOWN-PARTS SEPARATELY. INCLUDES: NSN 1005-01-141-1235(P/N 9340487) BUFFER ASSEMBLY, REC BARREL; NSN 1005-00-200-5800 (P/N 6009832) SPRING, HELICAL COMPRESSION; NSN 1005-00-600-8782 (P/N 6008782) GUIDE, BUFFER SPRING; NSN 1005-00-550-8141 (P/N 5508141) ACCELERATOR, MACHINE BUFFER; NSN 5315-00-600-8790 P/N (6008790) PIN, SPRING; NSN 1005-00-726-6835 (P/N 7266835) BODY ASSEMBLY,BARREL; NSN 5342-00-500-9566 (P/N 5009266) BUFFER BODY STOCK; NSN 5315-00-234-1861 (P/N MS24665-298) PIN, COTTER; End Item Identification: M2 MACHINE GUN. 0 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.
NSN 1005-01-453-9289 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.