The Bolt,mortise, cataloged under National Stock Number 5340-00-566-7779, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Eastern Co Div Eberhard Manufacturing. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-566-7779 |
| Primary Part Number | 565698-52U |
| Item Name | Bolt,mortise |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Eastern Co Div Eberhard Manufacturing |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 531804 | Fwd Seagrave Holdings Lp (USA) |
| 565698-52U PRIMARY | Eastern Co Div Eberhard Manufacturing (USA) |
| Reference | Meaning |
|---|---|
| 565698-52 | 5/9 Secondary reference Eastern Co Div Eberhard Manufacturing |
| 565698-52 | 5/9 Secondary reference Eastern Co the |
NSN 5340-00-566-7779 is a Bolt,mortise, manufactured by Eastern Co Div Eberhard Manufacturing, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-566-7779 has 2 manufacturer part numbers on file: 531804 (Fwd Seagrave Holdings Lp), 565698-52U (Eastern Co Div Eberhard Manufacturing).
3 possible matches (shared part number, not a government interchangeability claim): 5330-01-192-6401, 6750-01-427-5091, 6625-01-578-4455. Verify interchangeability with system specifications before substitution.
Key specifications for 565698-52U: Special Features: CASE 2.6250 IN.LG,2.000 IN.W INC 1 FLANGES,4 MTG HOLES 0.2031 IN.DIA,SPACED 1.9375 IN.BY 1.3750 IN.BOLT 0.7500 IN.W,0.5000 IN.H,EXTENDS 0.6875 IN.BEYOND END OF CASE; IN. 0 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.