The Screw,externally Relieved Body, cataloged under National Stock Number 5305-00-337-9898, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-337-9898 |
| Primary Part Number | 1090037 |
| Item Name | Screw,externally Relieved Body |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Head Height | 0.156 INCHES NOMINAL IN |
| Fastener Length | 2.312 INCHES NOMINAL IN |
| Thread Length | 0.191 INCHES MINIMUM AND 0.221 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 4530 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| First Diameter From Head | 0.312 INCHES NOMINAL IN |
| Distance From Largest Bearing Surface of Head to End of Second Diameter | 2.092 INCHES MINIMUM AND 2.122 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | PAN NO. 2 |
| Thread Direction | RIGHT-HAND |
| Second Diameter From Head | 0.187 INCHES MINIMUM AND 0.197 INCHES MAXIMUM IN |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 2.000 INCHES NOMINAL IN |
| Externally Relieved Body Diameter Quantity | 2 |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 28 |
| Material | COPPER ALLOY 360 OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 0.812 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 |
|---|---|
| 1090037 PRIMARY | Northrop Grumman Systems Corporation (USA) |
NSN 5305-00-337-9898 is a Screw,externally Relieved Body, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-337-9898 has 1 manufacturer part number on file: 1090037 (Northrop Grumman Systems Corporation).
1 possible match (shared part number, not a government interchangeability claim): 5310-00-860-3253. Verify interchangeability with system specifications before substitution.
Key specifications for 1090037: Head Height: 0.156 INCHES NOMINAL IN; Fastener Length: 2.312 INCHES NOMINAL IN; Thread Length: 0.191 INCHES MINIMUM AND 0.221 INCHES MAXIMUM IN; Material Document and Classification: AMS 4530 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 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.