The Replacer,insert, cataloged under National Stock Number 5120-00-034-8441, 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. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5120-00-034-8441 |
| Primary Part Number | 8390422 |
| Item Name | Replacer,insert |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL,FED.SPEC. QQ-S-633 FS1040 THRU FS1050,5.000 IN. LG,0.309 IN. DIA. 1ST. STEP,3.000 IN. LG. 1ST. STEP,1.094 IN DIA. 2ND. STEP,0.250 IN. LG 2ND. STEP,1.370 IN. DIA 3RD. STEP,1.750 IN. LG 3RD. STEP,PHOSPHATE COAT FINISH,C35 MIN. C40 MAX. ROCKWELL HARDNESS IN |
| 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 |
|---|---|
| 8390422 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 5120-00-034-8441 is a Replacer,insert, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
NSN 5120-00-034-8441 has 1 manufacturer part number on file: 8390422 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 8390422: General Characteristics Item Description: STEEL,FED.SPEC. QQ-S-633 FS1040 THRU FS1050,5.000 IN. LG,0.309 IN. DIA. 1ST. STEP,3.000 IN. LG. 1ST. STEP,1.094 IN DIA. 2ND. STEP,0.250 IN. LG 2ND. STEP,1.370 IN. DIA 3RD. STEP,1.750 IN. LG 3RD. STEP,PHOSPHATE COAT FINISH,C35 MIN. C40 MAX. ROCKWELL HARDNESS 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.
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.