The Screw,externally Relieved Body, cataloged under National Stock Number 5305-01-089-5984, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Pattonair Usa Inc Dba Incora Div Uniseal Division. Government technical data includes 22 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-089-5984 |
| Primary Part Number | ABS2077-1A1 |
| Item Name | Screw,externally Relieved Body |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Pattonair Usa Inc Dba Incora Div Uniseal Division |
| Status | ACTIVE |
| Head Height | 0.042 INCHES NOMINAL IN |
| Fastener Length | 0.516 INCHES MINIMUM AND 0.561 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-C-13924 CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.246 INCHES NOMINAL IN |
| Material Document and Classification | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| First Diameter From Head | 0.138 INCHES NOMINAL IN |
| Distance From Largest Bearing Surface of Head to End of Second Diameter | 0.243 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.138 INCHES IN |
| Head Style | FLAT COUNTERSUNK UNDERCUT |
| Thread Direction | RIGHT-HAND |
| Second Diameter From Head | 0.097 INCHES NOMINAL IN |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.043 INCHES MINIMUM AND 0.053 INCHES MAXIMUM IN |
| Externally Relieved Body Diameter Quantity | 2 |
| Surface Treatment | OXIDE OVERALL |
| Minimum Tensile Strength | 125000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 410 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.287 INCHES MINIMUM AND 0.334 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 |
| Part Number | Manufacturer |
|---|---|
| ABS2077-1A1 PRIMARY | Pattonair Usa Inc Dba Incora Div Uniseal Division (USA) |
| Reference | Meaning |
|---|---|
| 2051716-1 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 5305-01-089-5984 is a Screw,externally Relieved Body, manufactured by Pattonair Usa Inc Dba Incora Div Uniseal Division, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-089-5984 has 1 manufacturer part number on file: ABS2077-1A1 (Pattonair Usa Inc Dba Incora Div Uniseal Division).
Key specifications for ABS2077-1A1: Head Height: 0.042 INCHES NOMINAL IN; Fastener Length: 0.516 INCHES MINIMUM AND 0.561 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MIL-C-13924 CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.246 INCHES NOMINAL IN. 22 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.