PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20947Nut,plain,square

Meggitt (new Hampshire), Inc · NSN 5310-00-391-0185 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-391-0185 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-391-0185. Primary manufacturer part number: 20947.
Features
  • Nut,plain,square — FSC 5310
  • Thread Class: 2B
  • Thread Quantity Per Inch: 32
  • Bearing Surface Type: FLAT
  • Nominal Thread Size: 0.164 INCHES IN
  • Thread Series: UNIFIED NATIONAL COARSE (UNC)
  • Thread Direction: RIGHT-HAND
  • Width Across Flats: 0.315 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Aluminum Alloy Overall construction
General Description

The Nut,plain,square, cataloged under National Stock Number 5310-00-391-0185, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Meggitt (new Hampshire), Inc. Government technical data includes 11 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-391-0185
Primary Part Number20947
Item NameNut,plain,square
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerMeggitt (new Hampshire), Inc
StatusACTIVE
Thread Class2B
Thread Quantity Per Inch32
Bearing Surface TypeFLAT
Nominal Thread Size0.164 INCHES IN
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Thread DirectionRIGHT-HAND
Width Across Flats0.315 INCHES NOMINAL IN
Nut Height0.422 INCHES NOMINAL IN
Surface TreatmentANODIZE OVERALL
MaterialALUMINUM ALLOY OVERALL
Nut StyleSQUARE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
1650-00-083-407920947 INTERCHANGEABLE
Housing,control Cyl
Mid-America Aerotech, Llc
5330-00-922-520420947 INTERCHANGEABLE
Gasket
Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
5961-01-024-792120947 INTERCHANGEABLE
Semiconductor Device,diode
Noske-Kaeser Germany Gmbh
4720-01-168-279920947 INTERCHANGEABLE
Hose,preformed
Gates Corporation
Cross-Reference Index
Part NumberManufacturer
20947 Meggitt (new Hampshire), Inc (USA)
Related Parts
1650-00-083-4079INTERCHANGEABLE
HOUSING,CONTROL CYL
20947
5330-00-922-5204INTERCHANGEABLE
GASKET
20947
5961-01-024-7921INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
20947
4720-01-168-2799INTERCHANGEABLE
HOSE,PREFORMED
20947

Frequently Asked Questions

What is NSN 5310-00-391-0185?

NSN 5310-00-391-0185 is a Nut,plain,square, manufactured by Meggitt (new Hampshire), Inc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-391-0185?

NSN 5310-00-391-0185 has 1 cross-referenced part number: 20947 (Meggitt (new Hampshire), Inc).

What NSN replaces 5310-00-391-0185?

There are 4 known substitutes for 5310-00-391-0185: 1650-00-083-4079, 5330-00-922-5204, 5961-01-024-7921 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20947?

Key specifications for 20947: Thread Class: 2B; Thread Quantity Per Inch: 32; Bearing Surface Type: FLAT; Nominal Thread Size: 0.164 INCHES IN. 12 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com