The Nut,sleeve, cataloged under National Stock Number 5310-01-377-0941, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Corporation Div Lockheed Martin Information Systems & Global Solutions. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5310-01-377-0941 |
| Primary Part Number | C005281-01 |
| Item Name | Nut,sleeve |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Lockheed Martin Corporation Div Lockheed Martin Information Systems & Global Solutions |
| Status | ACTIVE |
| Flange Width Across Flats | 0.375 INCHES NOMINAL IN |
| Nut Length | 0.080 INCHES NOMINAL IN |
| Flange Thickness | 0.080 INCHES NOMINAL IN |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Material Document and Classification | ASTM A582 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.164 INCHES IN |
| Nut Diameter | 0.250 INCHES MINIMUM AND 0.256 INCHES MAXIMUM IN |
| Cross-Sectional Shape | HEXAGONAL NUT |
| Surface Treatment | PASSIVATE OVERALL |
| Nut Style | SLEEVE |
| Thread Class | 2B |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 303S OR STEEL COMP 303SE OVERALL |
| 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 |
|---|---|
| C005281-01 | Reyco Precision Machining Inc. (USA) |
| C005281-01 | Mikron Manufacturing, Inc. Dba Mikron Manufacturing Inc (USA) |
| C005281-01 PRIMARY | Lockheed Martin Corporation Div Lockheed Martin Information Systems & Global Solutions (USA) |
| Reference | Meaning |
|---|---|
| C005281 | D/9 Drawing number reference only Lockheed Martin Corporation Div Lockheed Martin Information Systems & Global Solutions |
NSN 5310-01-377-0941 is a Nut,sleeve, manufactured by Lockheed Martin Corporation Div Lockheed Martin Information Systems & Global Solutions, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-377-0941 has 3 manufacturer part numbers on file: C005281-01 (Reyco Precision Machining Inc.), C005281-01 (Mikron Manufacturing, Inc. Dba Mikron Manufacturing Inc), C005281-01 (Lockheed Martin Corporation Div Lockheed Martin Information Systems & Global Solutions).
Key specifications for C005281-01: Flange Width Across Flats: 0.375 INCHES NOMINAL IN; Nut Length: 0.080 INCHES NOMINAL IN; Flange Thickness: 0.080 INCHES NOMINAL IN; Thread Series: UNIFIED NATIONAL COARSE (UNC). 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.