The Screw,assembled Washer, cataloged under National Stock Number 5305-01-076-1827, 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 20 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-076-1827 |
| Primary Part Number | ABS20777-C1 |
| Item Name | Screw,assembled Washer |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Pattonair Usa Inc Dba Incora Div Uniseal Division |
| Status | ACTIVE |
| Fastener Length | 0.158 INCHES NOMINAL IN |
| Primary Washer Outside Diameter | 0.480 INCHES NOMINAL IN |
| Thread Length | 0.158 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Features Provided | O RING AND WASHER |
| Head Style | FLAT COUNTERSUNK |
| Primary Washer Style | FLAT |
| Thread Direction | RIGHT-HAND |
| Primary Washer Material Thickness | 0.003 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE FASTENER |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE PRIMARY WASHER |
| Material | RUBBER SYNTHETIC RING |
| Material | STEEL COMP 302 OR STEEL COMP 303 FASTENER |
| Thread Series Designator | UNF |
| Washer Quantity | 1 |
| Head Diameter | 0.114 INCHES MINIMUM AND 0.122 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 |
|---|---|
| AB935EP38 | Pattonair Usa Inc Dba Incora Div Uniseal Division (USA) |
| ABS20777-C1 PRIMARY | Pattonair Usa Inc Dba Incora Div Uniseal Division (USA) |
| Reference | Meaning |
|---|---|
| 12272671 | 7/2 Vendor item drawing reference Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
NSN 5305-01-076-1827 is a Screw,assembled Washer, manufactured by Pattonair Usa Inc Dba Incora Div Uniseal Division, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-076-1827 has 2 manufacturer part numbers on file: AB935EP38 (Pattonair Usa Inc Dba Incora Div Uniseal Division), ABS20777-C1 (Pattonair Usa Inc Dba Incora Div Uniseal Division).
Key specifications for ABS20777-C1: Fastener Length: 0.158 INCHES NOMINAL IN; Primary Washer Outside Diameter: 0.480 INCHES NOMINAL IN; Thread Length: 0.158 INCHES NOMINAL IN; Nominal Thread Diameter: 0.312 INCHES IN. 20 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.