PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

S77AAdapter,torque Wrench

Naval Inventory Control Point Mechanicsburg · NSN 5120-01-626-3979 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-626-3979 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-626-3979. Primary manufacturer part number: S77A.
Features
  • Adapter,torque Wrench — FSC 5120
  • Criticality Code Justification: ZZZY
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVSUP-WSS ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
  • 2 verified cross-references
  • Primary manufacturer: Naval Inventory Control Point Mechanicsburg
Applications
  • Field maintenance and repair
  • Facility maintenance operations
  • General-purpose hand tools
General Description

The Adapter,torque Wrench, cataloged under National Stock Number 5120-01-626-3979, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 2 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-626-3979
Primary Part NumberS77A
Item NameAdapter,torque Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerNaval Inventory Control Point Mechanicsburg
StatusACTIVE
Criticality Code JustificationZZZY
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVSUP-WSS ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
2040-00-012-3713S77A INTERCHANGEABLE
Cylinder,strainer
Gross Mechanical Laboratories Inc
5120-01-335-1081S77A INTERCHANGEABLE
Ratchet Attachment,socket Wrench
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
Cross-Reference Index
Part NumberManufacturer
S77A Naval Inventory Control Point Mechanicsburg (USA)
S77A Snap-on Tools Corp (USA)
Related Parts
2040-00-012-3713INTERCHANGEABLE
CYLINDER,STRAINER
S77A
5120-01-335-1081INTERCHANGEABLE
RATCHET ATTACHMENT,SOCKET WRENCH
S77A

Frequently Asked Questions

What is NSN 5120-01-626-3979?

NSN 5120-01-626-3979 is a Adapter,torque Wrench, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-626-3979?

NSN 5120-01-626-3979 has 2 cross-referenced part numbers: S77A (Naval Inventory Control Point Mechanicsburg), S77A (Snap-on Tools Corp).

What NSN replaces 5120-01-626-3979?

There are 2 known substitutes for 5120-01-626-3979: 2040-00-012-3713, 5120-01-335-1081. Verify interchangeability with system specifications before substitution.

What are the specifications of S77A?

Key specifications for S77A: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVSUP-WSS ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS. 2 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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