PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

P-31Pliers,slip Joint

Ampco Partners, Ltd. Dba Ampco Safety Tools · NSN 5120-01-631-3973 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-631-3973 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-631-3973. Primary manufacturer part number: P-31.
Features
  • Pliers,slip Joint — FSC 5120
  • Pliers Style Designator: STRAIGHT NOSE
  • Jaw Capacity: 13.0 MILLIMETERS MAXIMUM MM
  • Features Provided: COMFORT GRIP HANDLE AND NONSPARKING AND NONMAGNETIC
  • Material: COPPER ALLOY
  • Jaw Adjustment Positions: 2
  • 1 verified cross-reference
  • Primary manufacturer: Ampco Partners, Ltd. Dba Ampco Safety Tools
Applications
  • Applications requiring Copper Alloy construction
General Description

The Pliers,slip Joint, cataloged under National Stock Number 5120-01-631-3973, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Ampco Partners, Ltd. Dba Ampco Safety Tools. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-631-3973
Primary Part NumberP-31
Item NamePliers,slip Joint
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerAmpco Partners, Ltd. Dba Ampco Safety Tools
StatusACTIVE
Pliers Style DesignatorSTRAIGHT NOSE
Jaw Capacity13.0 MILLIMETERS MAXIMUM MM
Features ProvidedCOMFORT GRIP HANDLE AND NONSPARKING AND NONMAGNETIC
MaterialCOPPER ALLOY
Jaw Adjustment Positions2
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
3655-00-071-9500 INTERCHANGEABLE
Scraper Assembly
5999-00-643-6803P31 INTERCHANGEABLE
Heater,thermal Release
Rockwell Automation, Inc. Dba Rockwell Automation
5330-00-926-4000 INTERCHANGEABLE
Packing,preformed
4730-01-286-4648P31 INTERCHANGEABLE
Plug,pipe
Prier Brass Mfg Co
3020-01-551-6029P-31 INTERCHANGEABLE
Pulley,groove
Carbis Ladders Div of Carbis Sales Inc
5925-01-562-3552 INTERCHANGEABLE
Circuit Breaker
7490-01-566-1252P31 INTERCHANGEABLE
Printing Machine,label
Powis Parker Inc
Cross-Reference Index
Part NumberManufacturer
P-31 PRIMARY Ampco Partners, Ltd. Dba Ampco Safety Tools (USA)
Related Parts
3655-00-071-9500INTERCHANGEABLE
SCRAPER ASSEMBLY
5999-00-643-6803INTERCHANGEABLE
HEATER,THERMAL RELEASE
P31
5330-00-926-4000INTERCHANGEABLE
PACKING,PREFORMED
4730-01-286-4648INTERCHANGEABLE
PLUG,PIPE
P31
3020-01-551-6029INTERCHANGEABLE
PULLEY,GROOVE
P-31
5925-01-562-3552INTERCHANGEABLE
CIRCUIT BREAKER
7490-01-566-1252INTERCHANGEABLE
PRINTING MACHINE,LABEL
P31

Frequently Asked Questions

What is NSN 5120-01-631-3973?

NSN 5120-01-631-3973 is a Pliers,slip Joint, manufactured by Ampco Partners, Ltd. Dba Ampco Safety Tools, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-631-3973?

NSN 5120-01-631-3973 has 1 cross-referenced part number: P-31 (Ampco Partners, Ltd. Dba Ampco Safety Tools).

What NSN replaces 5120-01-631-3973?

There are 7 known substitutes for 5120-01-631-3973: 3655-00-071-9500, 5999-00-643-6803, 5330-00-926-4000 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of P-31?

Key specifications for P-31: Pliers Style Designator: STRAIGHT NOSE; Jaw Capacity: 13.0 MILLIMETERS MAXIMUM MM; Overall Length: 205.0 MILLIMETERS NOMINAL MM; Features Provided: COMFORT GRIP HANDLE AND NONSPARKING AND NONMAGNETIC. 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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