The Inserter,seal, cataloged under National Stock Number 5120-01-660-9956, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. The record lists 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Inserter,seal |
| FSC / FSG | 5120 — Hand Tools, Nonedged, Nonpowered (FSG 51) |
| Manufacturers | U S Army Tank Automotive Command Amsta-Im-Mm (CAGE 19207); Land Systems Gear Ratio (CAGE SDQ79); General Dynamics Land Systems Canadacorp (CAGE 56161) |
| Parameter | Value |
|---|---|
| NSN | 5120-01-660-9956 |
| Primary Part Number | 12637493 |
| Item Name | Inserter,seal |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| 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 |
|---|---|
| 12637493 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| R8503445/A10/SP PRIMARY | Land Systems Gear Ratio (ZAF) |
| R8503445/A10 | General Dynamics Land Systems Canadacorp (CAN) |
| Reference | Meaning |
|---|---|
| R8503445/A10/SP | 5/9 Secondary reference General Dynamics Land Systems Canadacorp |
NSN 5120-01-660-9956 is a Inserter,seal, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
NSN 5120-01-660-9956 has 3 manufacturer part numbers on file: 12637493 (U S Army Tank Automotive Command Amsta-Im-Mm), R8503445/A10/SP (Land Systems Gear Ratio), R8503445/A10 (General Dynamics Land Systems Canadacorp).
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.