The Bolt,assembled Washer, cataloged under National Stock Number 5306-01-552-6099, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Corporation Div Rms. Government technical data includes 25 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-01-552-6099 |
| Primary Part Number | 77D616786G1 |
| Item Name | Bolt,assembled Washer |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| Status | ACTIVE |
| Fastener Length | 2.450 INCHES NOMINAL IN |
| Hole Thread Quantity Per Inch | 18 |
| Surface Treatment Document and Classification | ASTMA967 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Primary Washer Outside Diameter | 0.625 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN |
| Thread Length | 2.450 INCHES NOMINAL IN |
| Shank Unthreaded Hole Diameter | 0.125 INCHES MINIMUM AND 0.129 INCHES MAXIMUM FIRST HOLE IN |
| Material Document and Classification | ASTMA276 ASSN STD SINGLE MATERIAL RESPONSE AND ASTMA582 ASSN STD SINGLE MATERIAL RESPONSE STAND-OFF |
| Material Document and Classification | ASTMB21 ASSN STD SINGLE MATERIAL RESPONSE FASTENER |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Features Provided | BUSHING |
| Head Style | HEADLESS (SETSCREW) |
| Primary Washer Style | FLAT |
| Thread Direction | RIGHT-HAND |
| Primary Washer Material Thickness | 0.503 INCHES MINIMUM AND 0.508 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 2A A |
| Hole Nominal Thread Diameter | 0.3125 INCHES IN |
| Thread Quantity Per Inch | 18 |
| Material | COPPER ALLOY 464 OR COPPER ALLOY 485 FASTENER |
| Material | STEEL COMP 303 OR STEEL COMP 304 STAND-OFF |
| Hole Quantity | 1 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Washer Quantity | 1 |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 0.380 INCHES NOMINAL FIRST HOLE IN |
| Hole Diameter | 0.547 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 |
|---|---|
| 77D616786G1 PRIMARY | Lockheed Martin Corporation Div Rms (USA) |
| 77D616786G001 | Lockheed Martin Australia Pty Ltd (AUS) |
| Reference | Meaning |
|---|---|
| 77D616786G001 | 5/9 Secondary reference Lockheed Martin Australia Electronic Systems Pty Ltd |
NSN 5306-01-552-6099 is a Bolt,assembled Washer, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-552-6099 has 2 manufacturer part numbers on file: 77D616786G1 (Lockheed Martin Corporation Div Rms), 77D616786G001 (Lockheed Martin Australia Pty Ltd).
Key specifications for 77D616786G1: Fastener Length: 2.450 INCHES NOMINAL IN; Hole Thread Quantity Per Inch: 18; Surface Treatment Document and Classification: ASTMA967 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Primary Washer Outside Diameter: 0.625 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN. 25 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.