PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

TM77Ratchet Attachment,socket Wrench

Snap on Tools · NSN 5120-01-335-1086 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-335-1086 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-335-1086. Primary manufacturer part number: TM77.
Features
  • Ratchet Attachment,socket Wrench — FSC 5120
  • Surface Treatment: CHROMIUM OVERALL
  • Drive End Shape: SQUARE FIRST END EXTERNAL
  • Nondefinitive Spec/std Data: 2 TYPE AND 3 CLASS AND B STYLE
  • Style Designator: EXTERNAL-INTERNAL
  • Drive End Shape: SQUARE SECOND END INTERNAL
  • Drive Surface Size: 0.250 INCHES NOMINAL BOTH ENDS IN
  • Specification/standard Data: 05047-ASME B107.110 CAT 10 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Applications
  • Applications requiring Steel Overall construction
General Description

The Ratchet Attachment,socket Wrench, cataloged under National Stock Number 5120-01-335-1086, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Snap on Tools. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-335-1086
Primary Part NumberTM77
Item NameRatchet Attachment,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerSnap on Tools
StatusACTIVE
Surface TreatmentCHROMIUM OVERALL
Drive End ShapeSQUARE FIRST END EXTERNAL
Nondefinitive Spec/std Data2 TYPE AND 3 CLASS AND B STYLE
Style DesignatorEXTERNAL-INTERNAL
Drive End ShapeSQUARE SECOND END INTERNAL
Drive Surface Size0.250 INCHES NOMINAL BOTH ENDS IN
Specification/standard Data05047-ASME B107.110 CAT 10 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5120-00-227-8129 INTERCHANGEABLE
Ratchet Attachment,socket Wrench
5120-00-243-7322 INTERCHANGEABLE
Ratchet Attachment,socket Wrench
5120-00-243-7323 INTERCHANGEABLE
Ratchet Attachment,socket Wrench
5120-00-277-1207 INTERCHANGEABLE
Ratchet Attachment,socket Wrench
5120-01-334-9859 INTERCHANGEABLE
Ratchet Attachment,socket Wrench
5120-01-334-9872 INTERCHANGEABLE
Ratchet Attachment,socket Wrench
5120-01-335-1081S77A INTERCHANGEABLE
Ratchet Attachment,socket Wrench
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
5120-01-335-1082 INTERCHANGEABLE
Ratchet Attachment,socket Wrench
5120-01-355-1900L672B INTERCHANGEABLE
Ratchet Attachment,socket Wrench
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
5120-01-399-9668J5447 INTERCHANGEABLE
Ratchet Attachment,socket Wrench
The Stanley Works Dba Stanley Proto
Cross-Reference Index
Part NumberManufacturer
TM77 Snap on Tools (AUS)
TM67A Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
TM77 Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
B107.110 The American Society of Mechanical Engineers (USA)
B107.110 CAT TY2CL3STB General Services Administration Federal Supply Service (USA)
B107.10 TY2CL3STB General Services Administration Federal Supply Service (USA)
B107.10 The American Society of Mechanical Engineers (USA)
Related Parts
5120-00-227-8129INTERCHANGEABLE
RATCHET ATTACHMENT,SOCKET WRENCH
5120-00-243-7322INTERCHANGEABLE
RATCHET ATTACHMENT,SOCKET WRENCH
5120-00-243-7323INTERCHANGEABLE
RATCHET ATTACHMENT,SOCKET WRENCH
5120-00-277-1207INTERCHANGEABLE
RATCHET ATTACHMENT,SOCKET WRENCH
5120-01-334-9859INTERCHANGEABLE
RATCHET ATTACHMENT,SOCKET WRENCH
5120-01-334-9872INTERCHANGEABLE
RATCHET ATTACHMENT,SOCKET WRENCH
5120-01-335-1081INTERCHANGEABLE
RATCHET ATTACHMENT,SOCKET WRENCH
S77A
5120-01-335-1082INTERCHANGEABLE
RATCHET ATTACHMENT,SOCKET WRENCH
5120-01-355-1900INTERCHANGEABLE
RATCHET ATTACHMENT,SOCKET WRENCH
L672B
5120-01-399-9668INTERCHANGEABLE
RATCHET ATTACHMENT,SOCKET WRENCH
J5447

Frequently Asked Questions

What is NSN 5120-01-335-1086?

NSN 5120-01-335-1086 is a Ratchet Attachment,socket Wrench, manufactured by Snap on Tools, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-335-1086?

NSN 5120-01-335-1086 has 7 cross-referenced part numbers: TM77 (Snap on Tools), TM67A (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), TM77 (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), B107.110 (The American Society of Mechanical Engineers), B107.110 CAT TY2CL3STB (General Services Administration Federal Supply Service) and 2 more.

What NSN replaces 5120-01-335-1086?

There are 10 known substitutes for 5120-01-335-1086: 5120-00-227-8129, 5120-00-243-7322, 5120-00-243-7323 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of TM77?

Key specifications for TM77: Overall Length: 2.000 INCHES MAXIMUM IN; Surface Treatment: CHROMIUM OVERALL; Drive End Shape: SQUARE FIRST END EXTERNAL; Nondefinitive Spec/std Data: 2 TYPE AND 3 CLASS AND B STYLE. 10 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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