PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5604Lock Door

Fairbanks Morse, Llc · NSN 2540-00-404-4444 · FSC 2540 · No Item Name Available
Verified by PartsTable
NSN 2540-00-404-4444 — this item is cataloged by the U.S. Government under National Stock Number 2540-00-404-4444. Primary manufacturer part number: 5604.
Features
  • Lock Door — FSC 2540
  • 4 verified cross-references
  • Primary manufacturer: Fairbanks Morse, Llc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Lock Door, cataloged under National Stock Number 2540-00-404-4444, is classified within Federal Supply Class 2540 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Fairbanks Morse, Llc. This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameLock Door
FSC / FSG2540 — No Item Name Available (FSG 25)
ManufacturersColtec Industries Inc. Dba Fairbanks Morse Engine Div Fairbanks Morse Engine (CAGE 82796); Fairbanks Morse, Llc (CAGE 7PZX0)
Technical Specifications
ParameterValue
NSN2540-00-404-4444
Primary Part Number5604
Item NameLock Door
FSC / FSG2540 / 25 — No Item Name Available
ManufacturerFairbanks Morse, Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-156-352206575AB INTERCHANGEABLE
Bearing,ball,annular
Cnh Industrial America Llc Dba Cnh America
1620-00-343-5013 INTERCHANGEABLE
Arm,valve Return,damper
6515-00-412-1699 INTERCHANGEABLE
Syringe,hypodermic
4330-00-460-254551611 INTERCHANGEABLE
Filter Element,fluid
Wix Corp
5935-00-835-2680921190-1C INTERCHANGEABLE
Adapter,connector
Raytheon Company Dba Raytheon
4220-00-917-88525604 INTERCHANGEABLE
Wheel,pulley
Air-Lock, Incorporated
5930-00-937-124211D1002 INTERCHANGEABLE
Switch,slide
Switchcraft Inc.
5950-01-151-27525604 INTERCHANGEABLE
Transformer,power
Todd Systems, Inc. Dba Todd Systems Inc
6145-01-256-04639393 INTERCHANGEABLE
Cable,special Purpose,electrical
General Wire Products, Inc. Dba General Wire Products Inc
1730-01-256-23705604 INTERCHANGEABLE
Crosshead,ammunition Loader
Pdi Ground Support Systems, Inc.
Cross-Reference Index
Part NumberManufacturer
5604 Coltec Industries Inc. Dba Fairbanks Morse Engine Div Fairbanks Morse Engine (USA)
77 Coltec Industries Inc. Dba Fairbanks Morse Engine Div Fairbanks Morse Engine (USA)
5604 PRIMARY Fairbanks Morse, Llc (USA)
77 PRIMARY Fairbanks Morse, Llc (USA)
Related Parts
3110-00-156-3522INTERCHANGEABLE
BEARING,BALL,ANNULAR
06575AB
1620-00-343-5013INTERCHANGEABLE
ARM,VALVE RETURN,DAMPER
6515-00-412-1699INTERCHANGEABLE
SYRINGE,HYPODERMIC
4330-00-460-2545INTERCHANGEABLE
FILTER ELEMENT,FLUID
51611
5935-00-835-2680INTERCHANGEABLE
ADAPTER,CONNECTOR
921190-1C
4220-00-917-8852INTERCHANGEABLE
WHEEL,PULLEY
5604
5930-00-937-1242INTERCHANGEABLE
SWITCH,SLIDE
11D1002
5950-01-151-2752INTERCHANGEABLE
TRANSFORMER,POWER
5604
6145-01-256-0463INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
9393
1730-01-256-2370INTERCHANGEABLE
CROSSHEAD,AMMUNITION LOADER
5604
3010-01-335-7447INTERCHANGEABLE
COUPLING HALF,SHAFT
5604
5133-01-336-0541INTERCHANGEABLE
CUTTER,HOLE FORMING,DRIVE SHANK
560-4

Frequently Asked Questions

What is NSN 2540-00-404-4444?

NSN 2540-00-404-4444 is a Lock Door, manufactured by Fairbanks Morse, Llc, classified under FSC 2540 (No Item Name Available). Status: active.

What are the part numbers for NSN 2540-00-404-4444?

NSN 2540-00-404-4444 has 4 cross-referenced part numbers: 5604 (Coltec Industries Inc. Dba Fairbanks Morse Engine Div Fairbanks Morse Engine), 77 (Coltec Industries Inc. Dba Fairbanks Morse Engine Div Fairbanks Morse Engine), 5604 (Fairbanks Morse, Llc), 77 (Fairbanks Morse, Llc).

What NSN replaces 2540-00-404-4444?

There are 12 known substitutes for 2540-00-404-4444: 3110-00-156-3522, 1620-00-343-5013, 6515-00-412-1699 and 9 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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