PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3437Fastener,pawl

Chicago Lock Co · NSN 5340-01-256-3207 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-01-256-3207 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-256-3207. Primary manufacturer part number: 3437.
Features
  • Fastener,pawl — FSC 5340
  • Surface Treatment: ZINC OVERALL
  • Operational Direction: RIGHT-HAND
  • Material: COPPER ALLOY OVERALL
  • Pawl Actuation Method: KEY
  • Diameter: 0.750 INCHES NOMINAL IN
  • Pawl Length From Actuating Shaft Center to Pawl End: 1.156 INCHES NOMINAL IN
  • Mounting Plate to Pawl Distance: 0.500 INCHES NOMINAL IN
Applications
  • Applications requiring Copper Alloy Overall construction
General Description

The Fastener,pawl, cataloged under National Stock Number 5340-01-256-3207, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Chicago Lock Co. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-01-256-3207
Primary Part Number3437
Item NameFastener,pawl
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerChicago Lock Co
StatusACTIVE
Surface TreatmentZINC OVERALL
Operational DirectionRIGHT-HAND
MaterialCOPPER ALLOY OVERALL
Pawl Actuation MethodKEY
Diameter0.750 INCHES NOMINAL IN
Pawl Length From Actuating Shaft Center to Pawl End1.156 INCHES NOMINAL IN
Mounting Plate to Pawl Distance0.500 INCHES NOMINAL IN
Pawl TypeSTRAIGHT
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor5306-00-424-5556 (34-37)
HAZMATNo
Unit of IssueEA
Verified Substitutes 11
5306-00-424-555634-37 SUCCESSOR
Bolt,machine
Dresser Industries Inc Leroi Div
9390-00-057-7360 INTERCHANGEABLE
Sheeting,reflective
5930-00-132-836812093 INTERCHANGEABLE
Switch,push
Kalmar AC Inc
3120-00-383-8557 INTERCHANGEABLE
Bearing,sleeve
2520-00-425-70877349485 INTERCHANGEABLE
Pin
U S Army Tank Automotive Command Amsta-Im-Mm
9540-00-542-2720 INTERCHANGEABLE
Angle,structural
5315-00-663-0008 INTERCHANGEABLE
Pin,drive,power Actuated
5930-00-937-1531SM-D-700882 INTERCHANGEABLE
Switch,lever
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
6610-01-532-417334-3-7 INTERCHANGEABLE
Altimeter,pressure
United Instruments Inc.
6640-01-597-6382 INTERCHANGEABLE
Mortar and Pestle
Cross-Reference Index
Part NumberManufacturer
3437 Chicago Lock Co (USA)
0N516556 National Security Agency (USA)
Related Parts
SUCCESSOR 5306-00-424-5556 Bolt,machine · 34-37
9390-00-057-7360INTERCHANGEABLE
SHEETING,REFLECTIVE
5930-00-132-8368INTERCHANGEABLE
SWITCH,PUSH
12093
3120-00-383-8557INTERCHANGEABLE
BEARING,SLEEVE
2520-00-425-7087INTERCHANGEABLE
PIN
7349485
9540-00-542-2720INTERCHANGEABLE
ANGLE,STRUCTURAL
5315-00-663-0008INTERCHANGEABLE
PIN,DRIVE,POWER ACTUATED
5930-00-937-1531INTERCHANGEABLE
SWITCH,LEVER
SM-D-700882
6610-01-532-4173INTERCHANGEABLE
ALTIMETER,PRESSURE
34-3-7
6640-01-597-6382INTERCHANGEABLE
MORTAR AND PESTLE
5320-01-602-8494INTERCHANGEABLE
PIN-RIVET
3437

Frequently Asked Questions

What is NSN 5340-01-256-3207?

NSN 5340-01-256-3207 is a Fastener,pawl, manufactured by Chicago Lock Co, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-01-256-3207?

NSN 5340-01-256-3207 has 2 cross-referenced part numbers: 3437 (Chicago Lock Co), 0N516556 (National Security Agency).

What NSN replaces 5340-01-256-3207?

There are 11 known substitutes for 5340-01-256-3207: 5306-00-424-5556, 9390-00-057-7360, 5930-00-132-8368 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3437?

Key specifications for 3437: Surface Treatment: ZINC OVERALL; Operational Direction: RIGHT-HAND; Material: COPPER ALLOY OVERALL; Pawl Actuation Method: KEY. 8 total characteristics are documented in the Federal Logistics Information System.

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