The Cover,access, cataloged under National Stock Number 5340-01-122-7673, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Ametek, Inc. Div Aerospace & Defense. Government technical data includes 8 specifications, 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. 2 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 | 5340-01-122-7673 |
| Primary Part Number | A-2539 |
| Item Name | Cover,access |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Ametek, Inc. Div Aerospace & Defense |
| Status | ACTIVE |
| Flange Thickness | 0.062 INCHES NOMINAL IN |
| First Recess Inside Height | 0.535 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | RECESS, SAME SHAPE AS THE PERIPHERY |
| Outside Diameter | 6.750 INCHES NOMINAL IN |
| Bolt Hole Centerline to Nearest Edge Distance | 3.375 INCHES NOMINAL IN |
| Peripheral Shape Style | ROUND, ONE HOLE |
| Material | STEEL |
| Body Thickness | 0.062 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| A-2539 PRIMARY | Ametek, Inc. Div Aerospace & Defense (USA) |
NSN 5340-01-122-7673 is a Cover,access, manufactured by Ametek, Inc. Div Aerospace & Defense, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-122-7673 has 1 manufacturer part number on file: A-2539 (Ametek, Inc. Div Aerospace & Defense).
2 possible matches (shared part number, not a government interchangeability claim): 5330-01-189-3640, 5330-01-589-6527. Verify interchangeability with system specifications before substitution.
Key specifications for A-2539: Flange Thickness: 0.062 INCHES NOMINAL IN; First Recess Inside Height: 0.535 INCHES NOMINAL IN; Cross-Sectional Shape Style: RECESS, SAME SHAPE AS THE PERIPHERY; Outside Diameter: 6.750 INCHES NOMINAL IN. 8 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.
NSN 5340-01-122-7673 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.