PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

51116Clamp,synchro

L3 Technologies, Inc. Div L3 Keo · NSN 5340-01-031-7978 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-01-031-7978 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-031-7978. Primary manufacturer part number: 51116.
Features
  • Clamp,synchro — FSC 5340
  • Furnished Items: LOCKNUT
  • Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE
  • Height: 0.188 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN
  • Surface Treatment: PASSIVATE
  • Width: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
  • Hole Diameter: 0.118 INCHES MINIMUM AND 0.138 INCHES MAXIMUM IN
  • 3 verified cross-references
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Clamp,synchro, cataloged under National Stock Number 5340-01-031-7978, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is L3 Technologies, Inc. Div L3 Keo. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-01-031-7978
Primary Part Number51116
Item NameClamp,synchro
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerL3 Technologies, Inc. Div L3 Keo
StatusACTIVE
Furnished ItemsLOCKNUT
Surface Treatment Document and ClassificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE
Height0.188 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN
Surface TreatmentPASSIVATE
Width0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
Hole Diameter0.118 INCHES MINIMUM AND 0.138 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 7
5998-00-122-658551116 INTERCHANGEABLE
Circuit Card Assembly
Cae Inc
4730-00-232-7267 INTERCHANGEABLE
Strainer Element,sediment
5975-00-653-9165ASC-SD-4 INTERCHANGEABLE
Drawer,standardized
Auto Skate Co Inc
3110-01-315-724351116 INTERCHANGEABLE
Bearing,ball,thrust
Newmans Inc New Jersey Div
5306-01-371-185651-116 INTERCHANGEABLE
Bolt,machine
Howmet Global Fastening Systems Inc Div Camloc Products
5360-01-471-586651116 INTERCHANGEABLE
Spring,helical,compression
American Apex Corporation
3110-01-546-2504203690 INTERCHANGEABLE
Bearing,ball,thrust
Hamilton Jet, Inc.
Cross-Reference Index
Part NumberManufacturer
887B051116 L3 Technologies, Inc. Div L3 Keo (USA)
51116 PRIMARY L3 Technologies, Inc. Div L3 Keo (USA)
887B051116 Zf Industrieantriebe Witten Gmbh (DEU)
Related Parts
5998-00-122-6585INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
51116
4730-00-232-7267INTERCHANGEABLE
STRAINER ELEMENT,SEDIMENT
5975-00-653-9165INTERCHANGEABLE
DRAWER,STANDARDIZED
ASC-SD-4
3110-01-315-7243INTERCHANGEABLE
BEARING,BALL,THRUST
51116
5306-01-371-1856INTERCHANGEABLE
BOLT,MACHINE
51-116
5360-01-471-5866INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
51116
3110-01-546-2504INTERCHANGEABLE
BEARING,BALL,THRUST
203690

Frequently Asked Questions

What is NSN 5340-01-031-7978?

NSN 5340-01-031-7978 is a Clamp,synchro, manufactured by L3 Technologies, Inc. Div L3 Keo, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-01-031-7978?

NSN 5340-01-031-7978 has 3 cross-referenced part numbers: 887B051116 (L3 Technologies, Inc. Div L3 Keo), 51116 (L3 Technologies, Inc. Div L3 Keo), 887B051116 (Zf Industrieantriebe Witten Gmbh).

What NSN replaces 5340-01-031-7978?

There are 7 known substitutes for 5340-01-031-7978: 5998-00-122-6585, 4730-00-232-7267, 5975-00-653-9165 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 51116?

Key specifications for 51116: Furnished Items: LOCKNUT; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE; Height: 0.188 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN; Surface Treatment: PASSIVATE. 6 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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