The Catch,flush, cataloged under National Stock Number 5340-01-536-9043, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Southco Fasteners Pty Ltd 3 Aviation Place. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-536-9043 |
| Primary Part Number | M1-25-31-78 |
| Item Name | Catch,flush |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Southco Fasteners Pty Ltd 3 Aviation Place |
| Status | ACTIVE |
| Material | UNABLE TO DECODE |
| 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 |
|---|---|
| M1-25-31-78 | Southco Fasteners Pty Ltd 3 Aviation Place (AUS) |
| Reference | Meaning |
|---|---|
| M1-25-31-78 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5340-01-536-9043 is a Catch,flush, manufactured by Southco Fasteners Pty Ltd 3 Aviation Place, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-536-9043 has 1 manufacturer part number on file: M1-25-31-78 (Southco Fasteners Pty Ltd 3 Aviation Place).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-561-0136. Verify interchangeability with system specifications before substitution.
Key specifications for M1-25-31-78: Special Features: LONG PAWL NON-LOCKING LATCH; OVERALL DIA. 3 IN. IN; Part Name Assigned by Controlling Agency: COMPRESSION LATCH; Material: UNABLE TO DECODE. 1 specification is 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.