PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

JC495Wrench,spanner

The Stanley Works Dba Stanley Proto · NSN 5120-01-428-5056 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-428-5056 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-428-5056. Primary manufacturer part number: JC495.
Features
  • Wrench,spanner — FSC 5120
  • Style Designator: ADJUSTABLE PIN
  • Specification/standard Data: 0U583-AS-3 AS4283 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Material: STEEL OVERALL
  • Nondefinitive Spec/std Data: 2 TYPE AND 2 CLASS
  • Surface Treatment: OXIDE OVERALL
  • Pin Diameter: 0.250 INCHES NOMINAL IN
  • Opening Diameter: 1.250 INCHES MINIMUM AND 3.000 INCHES MAXIMUM IN
Applications
  • Applications requiring Steel Overall construction
General Description

The Wrench,spanner, cataloged under National Stock Number 5120-01-428-5056, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is The Stanley Works Dba Stanley Proto. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-428-5056
Primary Part NumberJC495
Item NameWrench,spanner
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerThe Stanley Works Dba Stanley Proto
StatusACTIVE
Style DesignatorADJUSTABLE PIN
Specification/standard Data0U583-AS-3 AS4283 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
MaterialSTEEL OVERALL
Nondefinitive Spec/std Data2 TYPE AND 2 CLASS
Surface TreatmentOXIDE OVERALL
Pin Diameter0.250 INCHES NOMINAL IN
Opening Diameter1.250 INCHES MINIMUM AND 3.000 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5120-00-061-4785 INTERCHANGEABLE
Wrench,spanner
5120-00-157-21330-474 INTERCHANGEABLE
Wrench,spanner
Martin Sprocket and Gear Inc
5120-00-288-9281 INTERCHANGEABLE
Wrench,spanner
5950-00-556-1063613421 INTERCHANGEABLE
Reactor
Lockheed Martin Corporation Div Rms - Mitchel Field
5330-00-610-3743S-3436-1000-BN INTERCHANGEABLE
Ring,wiper
Martin Fluid Power Company
5120-00-729-631011523T1 INTERCHANGEABLE
Wrench,spanner
Dresser Industries Inc Leroi Div
5910-00-827-48571140002P1 INTERCHANGEABLE
Capacitor,fixed,plastic Dielectr
Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems
1560-00-997-7617CA5119 INTERCHANGEABLE
Adapter,plate,refuel
Stillman Seal Corporation Div Stillman Seal Corperation
5120-01-037-26830-471 INTERCHANGEABLE
Wrench,spanner
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
5120-01-184-7985304APSKA INTERCHANGEABLE
Wrench Set,spanner
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
Cross-Reference Index
Part NumberManufacturer
AS6018 Sae International Dba Sae International (USA)
1FJ41 W.w. Grainger, Inc. Div Government Sales Division (USA)
34-361 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
34-361 Apex Tool Group, Llc Dba Nicholson (USA)
JC495 PRIMARY The Stanley Works Dba Stanley Proto (USA)
AS6018 TY2CL2 General Services Administration Federal Supply Service (USA)
C495 The Stanley Works Dba Stanley Proto (USA)
34-361 Armstrong Bros Tool Co (USA)
Related Parts
5120-00-061-4785INTERCHANGEABLE
WRENCH,SPANNER
5120-00-157-2133INTERCHANGEABLE
WRENCH,SPANNER
0-474
5120-00-288-9281INTERCHANGEABLE
WRENCH,SPANNER
5950-00-556-1063INTERCHANGEABLE
REACTOR
613421
5330-00-610-3743INTERCHANGEABLE
RING,WIPER
S-3436-1000-BN
5120-00-729-6310INTERCHANGEABLE
WRENCH,SPANNER
11523T1
5910-00-827-4857INTERCHANGEABLE
CAPACITOR,FIXED,PLASTIC DIELECTR
1140002P1
1560-00-997-7617INTERCHANGEABLE
ADAPTER,PLATE,REFUEL
CA5119
5120-01-037-2683INTERCHANGEABLE
WRENCH,SPANNER
0-471
5120-01-184-7985INTERCHANGEABLE
WRENCH SET,SPANNER
304APSKA
5120-01-335-0709INTERCHANGEABLE
WRENCH,SPANNER
APS357C
5120-01-335-0710INTERCHANGEABLE
WRENCH,SPANNER
APS363B

Frequently Asked Questions

What is NSN 5120-01-428-5056?

NSN 5120-01-428-5056 is a Wrench,spanner, manufactured by The Stanley Works Dba Stanley Proto, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-428-5056?

NSN 5120-01-428-5056 has 8 cross-referenced part numbers: AS6018 (Sae International Dba Sae International), 1FJ41 (W.w. Grainger, Inc. Div Government Sales Division), 34-361 (Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.), 34-361 (Apex Tool Group, Llc Dba Nicholson), JC495 (The Stanley Works Dba Stanley Proto) and 3 more.

What NSN replaces 5120-01-428-5056?

There are 12 known substitutes for 5120-01-428-5056: 5120-00-061-4785, 5120-00-157-2133, 5120-00-288-9281 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of JC495?

Key specifications for JC495: Style Designator: ADJUSTABLE PIN; Specification/standard Data: 0U583-AS-3 AS4283 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD; Material: STEEL OVERALL; Nondefinitive Spec/std Data: 2 TYPE AND 2 CLASS. 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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