The Retainer,spring, cataloged under National Stock Number 1015-00-921-5212, is classified within Federal Supply Class 1015 (Guns, 75mm Through 125mm) of the Weapons group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 1015-00-921-5212 |
| Primary Part Number | 8734577 |
| Item Name | Retainer,spring |
| FSC / FSG | 1015 / 10 — Guns, 75mm Through 125mm |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL GRADE 1212,1213 OR 1215 PER ASTM A108; HEAT TREATMENT; CASE HARDEN DEPTH .010 IN; HARDNESS RA 79-81; OUTSIDEDIAMTER 1.940 IN; INSIDE DIAMETER 1.574 IN; BORE DIAMETER 1.370 IN; THICKNESS 0.718 IN; USED ON THE M60 IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 8734577 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 8734577 | 5/9 Secondary reference Feinmechanische Werke Mainz Gmbh |
| 10502135 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 1015009215212 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 8734577 | 5/9 Secondary reference Liebherr-Aerospace Lindenberg Gmbh |
NSN 1015-00-921-5212 is a Retainer,spring, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 1015, Guns, 75mm Through 125mm. Status: active.
NSN 1015-00-921-5212 has 1 manufacturer part number on file: 8734577 (U S Army Tank Automotive Command Amsta-Im-Mm).
1 possible match (shared part number, not a government interchangeability claim): 5970-01-162-0697. Verify interchangeability with system specifications before substitution.
Key specifications for 8734577: General Characteristics Item Description: STEEL GRADE 1212,1213 OR 1215 PER ASTM A108; HEAT TREATMENT; CASE HARDEN DEPTH .010 IN; HARDNESS RA 79-81; OUTSIDEDIAMTER 1.940 IN; INSIDE DIAMETER 1.574 IN; BORE DIAMETER 1.370 IN; THICKNESS 0.718 IN; USED ON THE M60 IN. 1 specification is 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 1015-00-921-5212 has DEMIL Code Q. 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.