PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

C137Clamp,synchro

Designatronics Incorporated Div Sterling Instruments Div · NSN 5340-01-436-2863 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-01-436-2863 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-436-2863. Primary manufacturer part number: C137.
Features
  • Clamp,synchro — FSC 5340
  • Surface Treatment: PASSIVATE
  • Material Thickness: 0.052 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN
  • Material Document and Classification: QQ-S-764, CLASS 303 FED SPEC SINGLE MATERIAL RESPONSE
  • Hole Diameter: 0.099 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN
  • Outside Diameter: 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN
  • Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE
  • Specification/standard Data: 26512-GC503W MANUFACTURERS SPECIFICATION CONTROL
Applications
  • Applications requiring Steel Corrosion Resisting construction
General Description

The Clamp,synchro, cataloged under National Stock Number 5340-01-436-2863, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Designatronics Incorporated Div Sterling Instruments Div. Government technical data includes 9 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5340-01-436-2863
Primary Part NumberC137
Item NameClamp,synchro
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerDesignatronics Incorporated Div Sterling Instruments Div
StatusACTIVE
Surface TreatmentPASSIVATE
Material Thickness0.052 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN
Material Document and ClassificationQQ-S-764, CLASS 303 FED SPEC SINGLE MATERIAL RESPONSE
Hole Diameter0.099 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN
Outside Diameter0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN
Surface Treatment Document and ClassificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE
Specification/standard Data26512-GC503W MANUFACTURERS SPECIFICATION CONTROL
Style DesignatorROUND
MaterialSTEEL CORROSION RESISTING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
2920-00-358-6622608720 INTERCHANGEABLE
Cap,ignition Distribution
Caterpillar Inc Div Caterpillar Defense
3020-00-424-0542 INTERCHANGEABLE
Pulley,groove
2520-00-734-9560 INTERCHANGEABLE
Ring,retainer
6625-00-960-2215 INTERCHANGEABLE
Synchro Bridge,erro
6130-01-354-4846C137 INTERCHANGEABLE
Power Supply
Vanguard Electronics Co Inc Power Components Div
6145-01-396-3918C137 INTERCHANGEABLE
Wire,electrical
Erico Inc.
Cross-Reference Index
Part NumberManufacturer
GC5O3W1 Northrop Grumman Systems Corporation (USA)
C137 PRIMARY Designatronics Incorporated Div Sterling Instruments Div (USA)
Related Parts
2920-00-358-6622INTERCHANGEABLE
CAP,IGNITION DISTRIBUTION
608720
3020-00-424-0542INTERCHANGEABLE
PULLEY,GROOVE
2520-00-734-9560INTERCHANGEABLE
RING,RETAINER
6625-00-960-2215INTERCHANGEABLE
SYNCHRO BRIDGE,ERRO
6130-01-354-4846INTERCHANGEABLE
POWER SUPPLY
C137
6145-01-396-3918INTERCHANGEABLE
WIRE,ELECTRICAL
C137

Frequently Asked Questions

What is NSN 5340-01-436-2863?

NSN 5340-01-436-2863 is a Clamp,synchro, manufactured by Designatronics Incorporated Div Sterling Instruments Div, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-01-436-2863?

NSN 5340-01-436-2863 has 2 cross-referenced part numbers: GC5O3W1 (Northrop Grumman Systems Corporation), C137 (Designatronics Incorporated Div Sterling Instruments Div).

What NSN replaces 5340-01-436-2863?

There are 6 known substitutes for 5340-01-436-2863: 2920-00-358-6622, 3020-00-424-0542, 2520-00-734-9560 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of C137?

Key specifications for C137: Surface Treatment: PASSIVATE; Material Thickness: 0.052 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN; Material Document and Classification: QQ-S-764, CLASS 303 FED SPEC SINGLE MATERIAL RESPONSE; Hole Diameter: 0.099 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN. 9 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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