NSN 5340-01-590-3889 · NIIN 015903889 · Part number 12421519-011
U S Army Tank Automotive Command Amsta-Im-Mm · FSC 5340 — Hardware, Commercial · FSG 53 — Hardware and Abrasives · CAGE 19207
Government record, cited
NSN 5340-01-590-3889 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-590-3889. Manufacturer of record part number: 12421519-011.
Material Document and Classification: ASTM B209 ASSN STD SINGLE MATERIAL RESPONSE
Cross-Sectional Shape Style: FLAT
Securing Device Type: THREADED FASTENER
Bolt Circle Diameter: 0.124 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN
Width: 11.850 INCHES MINIMUM AND 14.990 INCHES MAXIMUM IN
Identification
NSN: 5340-01-590-3889
NIIN: 015903889
FSC: 5340 — Hardware, Commercial
FSG: 53 — Hardware and Abrasives
Primary part number: 12421519-011
Manufacturer: U S Army Tank Automotive Command Amsta-Im-Mm
General Description
The Cover,access, cataloged under National Stock Number 5340-01-590-3889, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government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
5340-01-590-3889
Primary Part Number
12421519-011
Item Name
Cover,access
FSC / FSG
5340 / 53 — Hardware, Commercial
Manufacturer
U S Army Tank Automotive Command Amsta-Im-Mm
Status
ACTIVE
Length
26.810 INCHES NOMINAL IN
Bolt Circle Hole Quantity
11
Material Document and Classification
ASTM B209 ASSN STD SINGLE MATERIAL RESPONSE
Cross-Sectional Shape Style
FLAT
Securing Device Type
THREADED FASTENER
Bolt Circle Diameter
0.124 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN
Width
11.850 INCHES MINIMUM AND 14.990 INCHES MAXIMUM IN
Corner Cut Type
SQUARE
Material
ALUMINUM ALLOY 5052
Body Thickness
0.063 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 Items6
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5340-01-590-389112421519-015POSSIBLE MATCH
COVER,ACCESS
Possible match (shared part number)U S Army Tank Automotive Command Amsta-Im-Mm
5340-01-590-389512421519-020POSSIBLE MATCH
COVER,ACCESS
Possible match (shared part number)U S Army Tank Automotive Command Amsta-Im-Mm
5340-01-590-389812421519-018POSSIBLE MATCH
PLATE,MOUNTING
Possible match (shared part number)U S Army Tank Automotive Command Amsta-Im-Mm
5340-01-590-390012421519-024POSSIBLE MATCH
PLATE,MOUNTING
Possible match (shared part number)U S Army Tank Automotive Command Amsta-Im-Mm
2590-01-710-710812421519-002POSSIBLE MATCH
COVER,ACCESS
Possible match (shared part number)U S Army Tank Automotive Command Amsta-Im-Mm
2590-01-710-712812421519-012POSSIBLE MATCH
PLATE,MOUNTING
Possible match (shared part number)U S Army Tank Automotive Command Amsta-Im-Mm
U S Army Tank Automotive Command Amsta-Im-Mm (USA)
Reference documents
Reference
Meaning
12421519
D/9Drawing number reference only
U S Army Tank Automotive Command Amsta-Im-Mm
Related Parts
5340-01-590-3891POSSIBLE MATCH
COVER,ACCESS
12421519-015
5340-01-590-3895POSSIBLE MATCH
COVER,ACCESS
12421519-020
5340-01-590-3898POSSIBLE MATCH
PLATE,MOUNTING
12421519-018
5340-01-590-3900POSSIBLE MATCH
PLATE,MOUNTING
12421519-024
2590-01-710-7108POSSIBLE MATCH
COVER,ACCESS
12421519-002
2590-01-710-7128POSSIBLE MATCH
PLATE,MOUNTING
12421519-012
Frequently Asked Questions
What is NSN 5340-01-590-3889?
NSN 5340-01-590-3889 is a Cover,access, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5340, Hardware, Commercial. Status: active.
What part numbers are listed for NSN 5340-01-590-3889?
NSN 5340-01-590-3889 has 1 manufacturer part number on file: 12421519-011 (U S Army Tank Automotive Command Amsta-Im-Mm).
What NSN replaces 5340-01-590-3889?
6 possible matches (shared part number, not a government interchangeability claim): 5340-01-590-3891, 5340-01-590-3895, 5340-01-590-3898. Verify interchangeability with system specifications before substitution.
What are the specifications of 12421519-011?
Key specifications for 12421519-011: Length: 26.810 INCHES NOMINAL IN; Bolt Circle Hole Quantity: 11; Material Document and Classification: ASTM B209 ASSN STD SINGLE MATERIAL RESPONSE; Cross-Sectional Shape Style: FLAT. 10 specifications are documented in the U.S. Government catalog.
Is NSN 5340-01-590-3889 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.