The Screw,externally Relieved Body, cataloged under National Stock Number 5305-01-031-0746, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Corporation Div Rms - Mitchel Field. Government technical data includes 18 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-031-0746 |
| Primary Part Number | 0882-57 |
| Item Name | Screw,externally Relieved Body |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Lockheed Martin Corporation Div Rms - Mitchel Field |
| Status | ACTIVE |
| Head Height | 0.562 INCHES NOMINAL IN |
| Fastener Length | 1.062 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.303 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN |
| Material Document and Classification | ASTM A582 COND A ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| First Diameter From Head | 0.170 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | KNURLED NO. 4 |
| Thread Direction | RIGHT-HAND |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.562 INCHES NOMINAL IN |
| Externally Relieved Body Diameter Quantity | 1 |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP 303 OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 0.500 INCHES NOMINAL 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 |
|---|---|
| 0882-57 PRIMARY | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
| Reference | Meaning |
|---|---|
| 6111SS2528 | 5/9 Secondary reference New Haven Mfg Corp Amatom Electronic Hardware Div |
| 6111SS2528 | C/1 Advisory reference — outside the item-of-supply concept Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware |
NSN 5305-01-031-0746 is a Screw,externally Relieved Body, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-031-0746 has 1 manufacturer part number on file: 0882-57 (Lockheed Martin Corporation Div Rms - Mitchel Field).
Key specifications for 0882-57: Head Height: 0.562 INCHES NOMINAL IN; Fastener Length: 1.062 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.303 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN. 18 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.