The Nut,bearing, cataloged under National Stock Number 5310-00-398-8680, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Curtiss-Wright Electro-Mechanical Corporation Div Epd. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-398-8680 |
| Primary Part Number | 6549P |
| Item Name | Nut,bearing |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL,ROUND,CONE SHAPE,2.765X3.242 IN.DIA,STEP 2.765 IN.DIAX0.275 IN.LG,0.892 IN.O/A HEIGHT,1 1/4-1 UNF INTERNAL THD,2 HOLES0.275 IN.DIAX0.465 IN.DEEP 2.000 IN.DIA B/C 180 DEG APART,1 HOLE 1.025 IN.FROM CENTER 90 DEG FROM MTG HOLES,3/8-16 UNC,HEX SOCKET SETSCREW 7/8 IN.LG INCLUDED 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 |
|---|---|
| 6549P PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| Reference | Meaning |
|---|---|
| 254985 | 5/9 Secondary reference U.S. Government activity |
| SL5989PC132 | 5/9 Secondary reference U.S. Government activity |
| SL4923PC132 | 5/9 Secondary reference U.S. Government activity |
| SL4980PC132 | 5/9 Secondary reference U.S. Government activity |
| 6549P | 3/9 Design control — primary reference U.S. Government activity |
| SL4985PC132 | 5/9 Secondary reference U.S. Government activity |
| SL6093PC132 | 5/9 Secondary reference U.S. Government activity |
| SL4928PC132 | 5/9 Secondary reference U.S. Government activity |
| SL6511PC132 | 5/9 Secondary reference U.S. Government activity |
NSN 5310-00-398-8680 is a Nut,bearing, manufactured by Curtiss-Wright Electro-Mechanical Corporation Div Epd, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-398-8680 has 1 manufacturer part number on file: 6549P (Curtiss-Wright Electro-Mechanical Corporation Div Epd).
1 possible match (shared part number, not a government interchangeability claim): 4720-01-575-5155. Verify interchangeability with system specifications before substitution.
Key specifications for 6549P: General Characteristics Item Description: STEEL,ROUND,CONE SHAPE,2.765X3.242 IN.DIA,STEP 2.765 IN.DIAX0.275 IN.LG,0.892 IN.O/A HEIGHT,1 1/4-1 UNF INTERNAL THD,2 HOLES0.275 IN.DIAX0.465 IN.DEEP 2.000 IN.DIA B/C 180 DEG APART,1 HOLE 1.025 IN.FROM CENTER 90 DEG FROM MTG HOLES,3/8-16 UNC,HEX SOCKET SETSCREW 7/8 IN.LG INCLUDED IN. 1 specification is 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.