The Screw,machine, cataloged under National Stock Number 5305-01-604-9086, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-604-9086 |
| Primary Part Number | 3M1277E8D28A |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Thread Length | 0.735 INCHES MINIMUM IN |
| Nominal Thread Diameter | 0.5151 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Screw Material | NICKEL ALLOY |
| Internal Drive Style | TORX |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| 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 |
|---|---|
| TX1027E8D28XA | Hi-Shear Corporation (USA) |
| 3M1277E8D28A | Heartland Precision Fasteners Inc (USA) |
| 3M1277E8D28A | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| 3M1277E8D28A | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| 3M1277E8D28A | Camcar Llc Div Camcar Llc (USA) |
| TX1027E8D28XA | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 3M1277E8D28A PRIMARY | The Boeing Company Div Defense (USA) |
| 11861E8D28A | Reid Products Inc. Dba Reid Products Inc (USA) |
| TX1027E8D28XA | Sps Technologies, Llc Dba PB Fasteners (USA) |
| TX1027E8D28XA | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| WC1277E8D28A | West Coast Aerospace, Inc. (USA) |
| 3M1277E8D28A | Houston Precision Fasteners I Lp (USA) |
| 3M1277E8D28A | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| TX1027E8D28XA | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| TX1027E8D28XA | 5/2 Secondary reference U.S. Government activity |
NSN 5305-01-604-9086 is a Screw,machine, manufactured by The Boeing Company Div Defense, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-604-9086 has 14 manufacturer part numbers on file: TX1027E8D28XA (Hi-Shear Corporation), 3M1277E8D28A (Heartland Precision Fasteners Inc), 3M1277E8D28A (Fastener Innovation Technology, Inc. Dba F I T), 3M1277E8D28A (B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace), 3M1277E8D28A (Camcar Llc Div Camcar Llc) and 9 more.
Key specifications for 3M1277E8D28A: Thread Length: 0.735 INCHES MINIMUM IN; Nominal Thread Diameter: 0.5151 INCHES IN; Thread Direction: RIGHT-HAND; Screw Material: NICKEL ALLOY. 6 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.