The Nut,sleeve, cataloged under National Stock Number 5310-01-281-0564, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Ainslie Corporation. Government technical data includes 16 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-281-0564 |
| Primary Part Number | 2850787-2 |
| Item Name | Nut,sleeve |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Ainslie Corporation |
| Status | ACTIVE |
| Lubrication | DRY FILM LUBRICANT |
| Nut Length | 0.875 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-C-13924 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNS |
| Hardness Rating | 39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.812 INCHES IN |
| Nut Diameter | 1.180 INCHES NOMINAL IN |
| Boss Thickness | 0.500 INCHES NOMINAL OVERALL IN |
| Cross-Sectional Shape | ROUND W/WRENCH FLATS NUT |
| Boss Diameter | 1.160 INCHES NOMINAL OVERALL IN |
| Surface Treatment | OXIDE OVERALL |
| Nut Style | SLEEVE |
| Thread Class | 3B |
| Thread Quantity Per Inch | 10 |
| Material | STEEL COMP 4340 OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5310-01-281-0564 is a Nut,sleeve, manufactured by Ainslie Corporation, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-281-0564 has 2 manufacturer part numbers on file: 2850787-2 (Ainslie Corporation), 2850787-2 (Lockheed Martin Corporation Div Rms - Manassas).
Key specifications for 2850787-2: Lubrication: DRY FILM LUBRICANT; Nut Length: 0.875 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-C-13924 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNS. 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.