The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-570-4763, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-570-4763 |
| Primary Part Number | 6430444-137M1 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| 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 |
|---|---|
| 6430444-137M1 | Amz Alabama Inc. (USA) |
| 6430444-137M1 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| Reference | Meaning |
|---|---|
| 6430444-137M1 | 3/9 Design control — primary reference Bae Systems Survivability Systems Llc |
| 6430444-137M1 | C/1 Advisory reference — outside the item-of-supply concept Bae Systems Land & Armaments L.p. |
NSN 5305-01-570-4763 is a Screw,cap,hexagon Head, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-570-4763 has 2 manufacturer part numbers on file: 6430444-137M1 (Amz Alabama Inc.), 6430444-137M1 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 6430444-137M1: Part Name Assigned by Controlling Agency: SCREW CAP HEX HEAD; End Item Identification: MRAP - COMMON NSN - USED ON 2 MRAP VARIANTS AND 1 OTHER WEAPON SYSTEM. 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.
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.