PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

51377Filter,particulate

Twin Tower Engineering, Inc · NSN 4240-01-537-1797 · FSC 4240 · No Item Name Available
Verified by PartsTable
NSN 4240-01-537-1797 — this item is cataloged by the U.S. Government under National Stock Number 4240-01-537-1797. Primary manufacturer part number: 51377.
Features
  • Filter,particulate — FSC 4240
  • 1 verified cross-reference
  • Primary manufacturer: Twin Tower Engineering, Inc
Applications
  • Fluid filtration and purification
  • Engine intake air cleaning
  • Hydraulic system protection
General Description

The Filter,particulate, cataloged under National Stock Number 4240-01-537-1797, is classified within Federal Supply Class 4240 (No Item Name Available) of the Fire Fighting, Rescue, and Safety Equipment group. The primary manufacturer of record is Twin Tower Engineering, Inc. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4240-01-537-1797
Primary Part Number51377
Item NameFilter,particulate
FSC / FSG4240 / 42 — No Item Name Available
ManufacturerTwin Tower Engineering, Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
8345-00-121-6849 INTERCHANGEABLE
Guidon
6240-00-155-8716 INTERCHANGEABLE
Lamp,incandescent
5210-00-827-0707C316R-24 INTERCHANGEABLE
Rule,machinist's
L.s. Starrett Company (the) Div Tool Division
8345-01-590-1389 INTERCHANGEABLE
Flag,non Assigned Training
Cross-Reference Index
Part NumberManufacturer
51377 PRIMARY Twin Tower Engineering, Inc (USA)
Related Parts
8345-00-121-6849INTERCHANGEABLE
GUIDON
6240-00-155-8716INTERCHANGEABLE
LAMP,INCANDESCENT
5210-00-827-0707INTERCHANGEABLE
RULE,MACHINIST'S
C316R-24
8345-01-590-1389INTERCHANGEABLE
FLAG,NON ASSIGNED TRAINING

Frequently Asked Questions

What is NSN 4240-01-537-1797?

NSN 4240-01-537-1797 is a Filter,particulate, manufactured by Twin Tower Engineering, Inc, classified under FSC 4240 (No Item Name Available). Status: active.

What are the part numbers for NSN 4240-01-537-1797?

NSN 4240-01-537-1797 has 1 cross-referenced part number: 51377 (Twin Tower Engineering, Inc).

What NSN replaces 4240-01-537-1797?

There are 4 known substitutes for 4240-01-537-1797: 8345-00-121-6849, 6240-00-155-8716, 5210-00-827-0707 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 51377?

Key specifications for 51377: End Item Identification: DETECTION AND ALARM DEVICES. 1 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