The Screw,externally Relieved Body, cataloged under National Stock Number 5305-01-138-5486, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 24 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-138-5486 |
| Item Name | Screw,externally Relieved Body |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Fourth Diameter From Head | 0.117 INCHES MINIMUM AND 0.117 INCHES MINIMUM AND 0.127 INCHES MAXIMUM0.127 INCHES MAXIMUM IN |
| Head Height | 0.200 INCHES NOMINAL0.200 INCHES NOMINAL IN |
| Fastener Length | 3.965 INCHES NOMINAL3.965 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALLQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.500 INCHES NOMINAL0.500 INCHES NOMINAL IN |
| Material Document and Classification | ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALLASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| First Diameter From Head | 0.272 INCHES NOMINAL0.272 INCHES NOMINAL IN |
| Distance From Largest Bearing Surface of Head to End of Second Diameter | 0.589 INCHES MINIMUM AND 0.589 INCHES MINIMUM AND 0.592 INCHES MAXIMUM0.592 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.138 INCHES0.138 INCHES IN |
| Distance From Largest Bearing Surface of Head to End of Third Diameter | 3.080 INCHES NOMINAL3.080 INCHES NOMINAL IN |
| Head Style | FLAT CHAMFERFLAT CHAMFER |
| Thread Direction | RIGHT-HANDRIGHT-HAND |
| Second Diameter From Head | 0.210 INCHES MINIMUM AND 0.210 INCHES MINIMUM AND 0.213 INCHES MAXIMUM0.213 INCHES MAXIMUM IN |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.560 INCHES NOMINAL0.560 INCHES NOMINAL IN |
| Externally Relieved Body Diameter Quantity | 44 |
| Surface Treatment | PASSIVATE OVERALLPASSIVATE OVERALL |
| Internal Drive Style | SLOTSLOT |
| Thread Class | 2A2A |
| Thread Quantity Per Inch | 3232 |
| Material | STEEL COMP 303 OVERALL |
| Distance From Largest Bearing Surface of Head to End of Fourth Diameter | 3.465 INCHES NOMINAL3.465 INCHES NOMINAL IN |
| Third Diameter From Head | 0.272 INCHES NOMINAL0.272 INCHES NOMINAL IN |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC)UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.312 INCHES NOMINAL0.312 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 |
| Reference | Meaning |
|---|---|
| 0126204-1 | 3/9 Design control — primary reference Naval Electronic Systems Security Engineering Center |
| 619-8395-001 | 5/9 Secondary reference Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
NSN 5305-01-138-5486 is a Screw,externally Relieved Body, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-138-5486: Fourth Diameter From Head: 0.117 INCHES MINIMUM AND 0.117 INCHES MINIMUM AND 0.127 INCHES MAXIMUM0.127 INCHES MAXIMUM IN; Head Height: 0.200 INCHES NOMINAL0.200 INCHES NOMINAL IN; Fastener Length: 3.965 INCHES NOMINAL3.965 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALLQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 24 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.