PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1688-5Gage,plug,thread

Stanley Engineered Fastening Llc · NSN 5220-00-568-0195 · FSC 5220 · No Item Name Available
Verified by PartsTable
NSN 5220-00-568-0195 — this item is cataloged by the U.S. Government under National Stock Number 5220-00-568-0195. Primary manufacturer part number: 1688-5.
Features
  • Gage,plug,thread — FSC 5220
  • Nominal Thread Diameter: 0.3120 INCHES IN
  • Thread Direction: RIGHT-HAND
  • Screw Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Thread Type: SINGLE
  • Design Type: DOUBLE END
  • Tapered Threads: NOT INCLUDED
  • Thread Stamped Pitch Diameter: 0.3486 INCHES MINIMUM AND 0.3515 INCHES MAXIMUM IN
Applications
  • Quality assurance and inspection
  • Precision measurement and calibration
  • Laboratory and test equipment
General Description

The Gage,plug,thread, cataloged under National Stock Number 5220-00-568-0195, is classified within Federal Supply Class 5220 (No Item Name Available) of the Measuring Tools group. The primary manufacturer of record is Stanley Engineered Fastening Llc. Government technical data includes 12 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5220-00-568-0195
Primary Part Number1688-5
Item NameGage,plug,thread
FSC / FSG5220 / 52 — No Item Name Available
ManufacturerStanley Engineered Fastening Llc
StatusACTIVE
Nominal Thread Diameter0.3120 INCHES IN
Thread DirectionRIGHT-HAND
Screw Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Thread TypeSINGLE
Design TypeDOUBLE END
Tapered ThreadsNOT INCLUDED
Thread Stamped Pitch Diameter0.3486 INCHES MINIMUM AND 0.3515 INCHES MAXIMUM IN
Features ProvidedCOMBINATION GO NOT GO GAGE
Thread Design Pitch Diameter0.3486 INCHES MINIMUM AND 0.3515 INCHES MAXIMUM IN
Pitch Diameter Tolerance-0.00010 TO 0.00010 INCHES AND -0.00010 TO 0.00000 INCHES IN
Thread Major Diameter Truncation FeatureNOT INCLUDED
Screw Thread Quantity Per Inch18.0
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
9540-00-148-4364 INTERCHANGEABLE
Beam,structural
5330-00-202-184416-885 INTERCHANGEABLE
Gasket
Dresser Industries Inc Leroi Div
5935-00-617-5023 INTERCHANGEABLE
Adapter,connector
5330-00-932-4902168-85 INTERCHANGEABLE
Gasket
Cummins Power Generation Inc.
5935-01-414-9857 INTERCHANGEABLE
Clamp,cable,electrical Connector
5975-01-521-430616885 INTERCHANGEABLE
Strap,tie Down,electrical Compon
Parts Associates, Inc. Dba P a I
Cross-Reference Index
Part NumberManufacturer
1688-5 PRIMARY Stanley Engineered Fastening Llc (USA)
Related Parts
9540-00-148-4364INTERCHANGEABLE
BEAM,STRUCTURAL
5330-00-202-1844INTERCHANGEABLE
GASKET
16-885
5935-00-617-5023INTERCHANGEABLE
ADAPTER,CONNECTOR
5330-00-932-4902INTERCHANGEABLE
GASKET
168-85
5935-01-414-9857INTERCHANGEABLE
CLAMP,CABLE,ELECTRICAL CONNECTOR
5975-01-521-4306INTERCHANGEABLE
STRAP,TIE DOWN,ELECTRICAL COMPON
16885

Frequently Asked Questions

What is NSN 5220-00-568-0195?

NSN 5220-00-568-0195 is a Gage,plug,thread, manufactured by Stanley Engineered Fastening Llc, classified under FSC 5220 (No Item Name Available). Status: active.

What are the part numbers for NSN 5220-00-568-0195?

NSN 5220-00-568-0195 has 1 cross-referenced part number: 1688-5 (Stanley Engineered Fastening Llc).

What NSN replaces 5220-00-568-0195?

There are 6 known substitutes for 5220-00-568-0195: 9540-00-148-4364, 5330-00-202-1844, 5935-00-617-5023 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1688-5?

Key specifications for 1688-5: Nominal Thread Diameter: 0.3120 INCHES IN; Thread Direction: RIGHT-HAND; Screw Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Thread Type: SINGLE. 12 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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