The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-088-5327, 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 16 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5305-01-088-5327 |
| Primary Part Number | 55422 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | L3 Technologies, Inc. Div L3 Keo |
| Status | ACTIVE |
| Width Across Flats | 0.079 INCHES NOMINAL IN |
| Head Height | 0.086 INCHES NOMINAL IN |
| Fastener Length | 0.188 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-F-14072,TYPE 2,E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.188 INCHES NOMINAL IN |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.086 INCHES IN |
| Head Style | PAN NO. 2 |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 56 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.134 INCHES MINIMUM AND 0.140 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 |
|---|---|
| 55422 PRIMARY | L3 Technologies, Inc. Div L3 Keo (USA) |
| Reference | Meaning |
|---|---|
| 934B055422 | 5/9 Secondary reference L3 Technologies, Inc. Div L3 Keo |
NSN 5305-01-088-5327 is a Screw,cap,socket Head, manufactured by L3 Technologies, Inc. Div L3 Keo, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-088-5327 has 1 manufacturer part number on file: 55422 (L3 Technologies, Inc. Div L3 Keo).
2 possible matches (shared part number, not a government interchangeability claim): 4320-01-388-9255, 1080-01-541-2661. Verify interchangeability with system specifications before substitution.
Key specifications for 55422: Width Across Flats: 0.079 INCHES NOMINAL IN; Head Height: 0.086 INCHES NOMINAL IN; Fastener Length: 0.188 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-F-14072,TYPE 2,E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL. 16 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.