PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

11-9040Norton Closure

Alvarado Manufacturing Co. Inc. · NSN 5340-01-577-2149 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-01-577-2149 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-577-2149. Primary manufacturer part number: 11-9040.
Features
  • Norton Closure — FSC 5340
  • Criticality Code Justification: ZZZY
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
  • 1 verified cross-reference
  • Primary manufacturer: Alvarado Manufacturing Co. Inc.
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Norton Closure, cataloged under National Stock Number 5340-01-577-2149, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Alvarado Manufacturing Co. Inc.. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-01-577-2149
Primary Part Number11-9040
Item NameNorton Closure
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerAlvarado Manufacturing Co. Inc.
StatusACTIVE
Criticality Code JustificationZZZY
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 5
4820-00-407-64492180-1 INTERCHANGEABLE
Valve,ball
Crane Co Div Valve Div
5305-01-138-3659 INTERCHANGEABLE
Screw,machine
5325-01-174-8312119040 INTERCHANGEABLE
Grommet,nonmetallic
Unison Industries Llc
1005-01-478-0654119040 INTERCHANGEABLE
Mount,machine Gun
Cadillac Gage Textron Inc.
1560-01-627-0360119040-3 INTERCHANGEABLE
Armor,supplemental,small Arms-Fr
Bae Systems Land & Armaments L.p.
Cross-Reference Index
Part NumberManufacturer
11-9040 Alvarado Manufacturing Co. Inc. (USA)
Related Parts
4820-00-407-6449INTERCHANGEABLE
VALVE,BALL
2180-1
5305-01-138-3659INTERCHANGEABLE
SCREW,MACHINE
5325-01-174-8312INTERCHANGEABLE
GROMMET,NONMETALLIC
119040
1005-01-478-0654INTERCHANGEABLE
MOUNT,MACHINE GUN
119040
1560-01-627-0360INTERCHANGEABLE
ARMOR,SUPPLEMENTAL,SMALL ARMS-FR
119040-3

Frequently Asked Questions

What is NSN 5340-01-577-2149?

NSN 5340-01-577-2149 is a Norton Closure, manufactured by Alvarado Manufacturing Co. Inc., classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-01-577-2149?

NSN 5340-01-577-2149 has 1 cross-referenced part number: 11-9040 (Alvarado Manufacturing Co. Inc.).

What NSN replaces 5340-01-577-2149?

There are 5 known substitutes for 5340-01-577-2149: 4820-00-407-6449, 5305-01-138-3659, 5325-01-174-8312 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 11-9040?

Key specifications for 11-9040: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS. 2 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com