The Cover,access, cataloged under National Stock Number 5340-01-367-5599, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-367-5599 |
| Primary Part Number | 1551AS125 PC 11CP |
| Item Name | Cover,access |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Outside Diameter | 4.000 INCHES NOMINAL IN |
| Securing Device Type | THREADED FASTENER |
| Surface Treatment | NICKEL |
| Peripheral Shape Style | ROUND, MULTI HOLES |
| Material | STEEL COMP 4130 |
| Reference Number Differentiating Characteristics | CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | S |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 1551AS125 PC 11CP | Naval Inventory Control Point Mechanicsburg (USA) |
| 1551AS125-13CP | Naval Inventory Control Point Mechanicsburg (USA) |
| 3100-42CP | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 1551AS125 PC 11 | 5/1 Secondary reference Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| 3100-42 | 5/1 Secondary reference American Bristol Industries Inc. |
| 1551AS125-13 | 3/1 Design control — primary reference Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
NSN 5340-01-367-5599 is a Cover,access, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-367-5599 has 3 manufacturer part numbers on file: 1551AS125 PC 11CP (Naval Inventory Control Point Mechanicsburg), 1551AS125-13CP (Naval Inventory Control Point Mechanicsburg), 3100-42CP (Naval Inventory Control Point Mechanicsburg).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-647-7943. Verify interchangeability with system specifications before substitution.
Key specifications for 1551AS125 PC 11CP: Criticality Code Justification: ZZZY; Outside Diameter: 4.000 INCHES NOMINAL IN; Securing Device Type: THREADED FASTENER; Surface Treatment: NICKEL. 7 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.