PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

56750Gage,plug,thread

Spiralock Corp Dba Spiralock Corp Div Spiralock Corporation · NSN 5220-01-179-5821 · FSC 5220 · No Item Name Available
Verified by PartsTable
NSN 5220-01-179-5821 — this item is cataloged by the U.S. Government under National Stock Number 5220-01-179-5821. Primary manufacturer part number: 56750.
Features
  • Gage,plug,thread — FSC 5220
  • Thread Type: SINGLE
  • Screw Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Thread Direction: RIGHT-HAND
  • Nominal Thread Diameter: 0.1250 INCHES IN
  • Design Type: SINGLE END
  • Features Provided: GO GAGE
  • Screw Thread Quantity Per Inch: 40.0
Applications
  • Quality assurance and inspection
  • Precision measurement and calibration
  • Laboratory and test equipment
General Description

The Gage,plug,thread, cataloged under National Stock Number 5220-01-179-5821, is classified within Federal Supply Class 5220 (No Item Name Available) of the Measuring Tools group. The primary manufacturer of record is Spiralock Corp Dba Spiralock Corp Div Spiralock Corporation. Government technical data includes 7 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5220-01-179-5821
Primary Part Number56750
Item NameGage,plug,thread
FSC / FSG5220 / 52 — No Item Name Available
ManufacturerSpiralock Corp Dba Spiralock Corp Div Spiralock Corporation
StatusACTIVE
Thread TypeSINGLE
Screw Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Thread DirectionRIGHT-HAND
Nominal Thread Diameter0.1250 INCHES IN
Design TypeSINGLE END
Features ProvidedGO GAGE
Screw Thread Quantity Per Inch40.0
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5905-00-196-6729 INTERCHANGEABLE
Resistor,fixed,film
5120-01-183-690956750 INTERCHANGEABLE
Puller,seal
Lisle Corp
6160-01-717-118656750 INTERCHANGEABLE
Case,battery Power Supply
Aerovironment, Inc.
Cross-Reference Index
Part NumberManufacturer
56750 PRIMARY Spiralock Corp Dba Spiralock Corp Div Spiralock Corporation (USA)
Related Parts
5905-00-196-6729INTERCHANGEABLE
RESISTOR,FIXED,FILM
5120-01-183-6909INTERCHANGEABLE
PULLER,SEAL
56750
6160-01-717-1186INTERCHANGEABLE
CASE,BATTERY POWER SUPPLY
56750

Frequently Asked Questions

What is NSN 5220-01-179-5821?

NSN 5220-01-179-5821 is a Gage,plug,thread, manufactured by Spiralock Corp Dba Spiralock Corp Div Spiralock Corporation, classified under FSC 5220 (No Item Name Available). Status: active.

What are the part numbers for NSN 5220-01-179-5821?

NSN 5220-01-179-5821 has 1 cross-referenced part number: 56750 (Spiralock Corp Dba Spiralock Corp Div Spiralock Corporation).

What NSN replaces 5220-01-179-5821?

There are 3 known substitutes for 5220-01-179-5821: 5905-00-196-6729, 5120-01-183-6909, 6160-01-717-1186. Verify interchangeability with system specifications before substitution.

What are the specifications of 56750?

Key specifications for 56750: Thread Type: SINGLE; Screw Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Thread Direction: RIGHT-HAND; Nominal Thread Diameter: 0.1250 INCHES IN. 7 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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