The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-033-1125, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is L3 Technologies, Inc. Div L3 Keo. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-033-1125 |
| Primary Part Number | 54445 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | L3 Technologies, Inc. Div L3 Keo |
| Status | ACTIVE |
| Width Across Flats | 0.083 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN |
| Head Height | 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN |
| Fastener Length | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN |
| Thread Length | 0.315 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN |
| Material Document and Classification | MIL-M-20693,COMP A,TY 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.112 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 40 |
| Material | PLASTIC POLYHEXAMETHYLENE AMIDE OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM 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 |
|---|---|
| 54445 PRIMARY | L3 Technologies, Inc. Div L3 Keo (USA) |
| 885F05206ITEM146 | L3 Technologies, Inc. Div L3 Keo (USA) |
| Reference | Meaning |
|---|---|
| Z9-N4-A6 | 5/9 Secondary reference W. M. Berg, Inc. |
| 885B054445 | 5/9 Secondary reference L3 Technologies, Inc. Div L3 Keo |
| 885B054445 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation |
NSN 5305-01-033-1125 is a Screw,cap,socket Head, manufactured by L3 Technologies, Inc. Div L3 Keo, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-033-1125 has 2 manufacturer part numbers on file: 54445 (L3 Technologies, Inc. Div L3 Keo), 885F05206ITEM146 (L3 Technologies, Inc. Div L3 Keo).
2 possible matches (shared part number, not a government interchangeability claim): 5340-01-535-5310, 5930-01-659-8179. Verify interchangeability with system specifications before substitution.
Key specifications for 54445: Width Across Flats: 0.083 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN; Head Height: 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN; Fastener Length: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN; Thread Length: 0.315 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN. 14 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.