The Screw,externally Relieved Body, cataloged under National Stock Number 5305-01-066-9339, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-066-9339 |
| Primary Part Number | 128ABM10222-3 |
| Item Name | Screw,externally Relieved Body |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Head Height | 0.297 INCHES NOMINAL IN |
| Fastener Length | 0.312 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | 4302A,FSCM 26512 MFR REF 1ST TREATMENT RESPONSE AND 4401A,FSCM 4401A MFR REF 2ND TREATMENT RESPONSE SIDES OF HEAD A |
| Thread Length | 0.160 INCHES MAXIMUM IN |
| Material Document and Classification | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| First Diameter From Head | 0.080 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.138 INCHES IN |
| Head Style | KNURLED NO. 1 |
| Thread Direction | RIGHT-HAND |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.152 INCHES NOMINAL IN |
| Externally Relieved Body Diameter Quantity | 1 |
| Surface Treatment | CHROMATE ZINC AND LACQUER SIDES OF HEAD |
| Internal Drive Style | SLOT |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 4130 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.312 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 |
|---|---|
| 128ABM10222-3 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 128ABM10222-3 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 5305-01-066-9339 is a Screw,externally Relieved Body, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-066-9339 has 1 manufacturer part number on file: 128ABM10222-3 (Northrop Grumman Systems Corporation).
Key specifications for 128ABM10222-3: Head Height: 0.297 INCHES NOMINAL IN; Fastener Length: 0.312 INCHES NOMINAL IN; Surface Treatment Document and Classification: 4302A,FSCM 26512 MFR REF 1ST TREATMENT RESPONSE AND 4401A,FSCM 4401A MFR REF 2ND TREATMENT RESPONSE SIDES OF HEAD A; Thread Length: 0.160 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.