The Screw,externally Relieved Body, cataloged under National Stock Number 5305-01-312-3898, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-312-3898 |
| Item Name | Screw,externally Relieved Body |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Fastener Length | 0.600 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | BEPS 6.003 CAGEC 77068 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.110 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-S-763 FED SPEC ALL MATERIAL RESPONSES OVERALL |
| First Diameter From Head | 0.084 INCHES MINIMUM AND 0.094 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.125 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Point Style | FLAT |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.040 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN |
| Externally Relieved Body Diameter Quantity | 1 |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | SLOT |
| Countersink Angle | 98.0 DEGREES MINIMUM AND 102.0 DEGREES MAXIMUM |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 40 |
| Material | STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 305 OR STEEL COMP 309 OR STEEL COMP 310 OR STEEL COMP 316 OR STEEL COMP 316L OR STEEL COMP 317 OR STEEL COMP 321 OR STEEL COMP 322 OR STEEL COMP 324 OR STEEL COMP 347 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.160 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 3311733 | 5/9 Secondary reference Allied-Signal Inc Dba Allied-Signal Aerospace Co Electrodynamics Div |
| 3311733 | C/1 Advisory reference — outside the item-of-supply concept Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) |
| 3197865 FIND 5 | C/1 Advisory reference — outside the item-of-supply concept Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) |
| 3197865 FIND 5 | 3/9 Design control — primary reference Allied-Signal Inc Dba Allied-Signal Aerospace Co Electrodynamics Div |
NSN 5305-01-312-3898 is a Screw,externally Relieved Body, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-312-3898: Fastener Length: 0.600 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN; Surface Treatment Document and Classification: BEPS 6.003 CAGEC 77068 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.110 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN; Material Document and Classification: QQ-S-763 FED SPEC ALL MATERIAL RESPONSES OVERALL. 19 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.