The Cover,access, cataloged under National Stock Number 5340-01-191-8303, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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.
Technical Specifications
Parameter
Value
NSN
5340-01-191-8303
Item Name
Cover,access
FSC / FSG
5340 / 53 — Hardware, Commercial
Status
ACTIVE
Flange Thickness
1.500 INCHES NOMINAL IN
Bolt Circle Hole Quantity
11
Material Document and Classification
MIL-H-16576 MIL SPEC SINGLE MATERIAL RESPONSE
Cross-Sectional Shape Style
FLAT, ROUND RIB REINFORCED
Outside Diameter
9.000 INCHES NOMINAL IN
Bolt Circle Diameter
7.500 INCHES NOMINAL IN
Peripheral Shape Style
ROUND, MULTI HOLES
Material
COPPER ALLOY
Body Thickness
2.312 INCHES NOMINAL IN
Lifecycle & Compliance
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
⇄Related Items5
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5340-01-191-830475651-41X2PC7POSSIBLE MATCH
COVER,ACCESS
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4820-01-192-051675651-41X2-2POSSIBLE MATCH
PLUG,ROTARY,VALVE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4820-01-192-051775651-41X2-3POSSIBLE MATCH
PLUG,ROTARY,VALVE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4820-01-192-596975651-41X2PC37POSSIBLE MATCH
STEM,STRAINER
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4730-01-194-028675651-41X2POSSIBLE MATCH
STRAINER,SEDIMENT
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
75651-41X2-5
5/9Secondary reference
U.S. Government activity
75651-41X2PC5
3/2Design control — primary reference
U.S. Government activity
75651-41X2
D/9Drawing number reference only
U.S. Government activity
Related Parts
5340-01-191-8304POSSIBLE MATCH
COVER,ACCESS
75651-41X2PC7
4820-01-192-0516POSSIBLE MATCH
PLUG,ROTARY,VALVE
75651-41X2-2
4820-01-192-0517POSSIBLE MATCH
PLUG,ROTARY,VALVE
75651-41X2-3
4820-01-192-5969POSSIBLE MATCH
STEM,STRAINER
75651-41X2PC37
4730-01-194-0286POSSIBLE MATCH
STRAINER,SEDIMENT
75651-41X2
Frequently Asked Questions
What is NSN 5340-01-191-8303?
NSN 5340-01-191-8303 is a Cover,access, classified under FSC 5340, Hardware, Commercial. Status: active.
What NSN replaces 5340-01-191-8303?
5 possible matches (shared part number, not a government interchangeability claim): 5340-01-191-8304, 4820-01-192-0516, 4820-01-192-0517. Verify interchangeability with system specifications before substitution.
What are the specifications of 5340-01-191-8303?
Key specifications for 5340-01-191-8303: Flange Thickness: 1.500 INCHES NOMINAL IN; Bolt Circle Hole Quantity: 11; Material Document and Classification: MIL-H-16576 MIL SPEC SINGLE MATERIAL RESPONSE; Cross-Sectional Shape Style: FLAT, ROUND RIB REINFORCED. 9 specifications are documented in the U.S. Government catalog.
Is NSN 5340-01-191-8303 hazardous material?
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.