PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21247Nut,plain,hexagon

Teledyne Industries Inc Teledyne Power Systems Div · NSN 5310-00-470-7561 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-470-7561 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-470-7561. Primary manufacturer part number: 21247.
Features
  • Nut,plain,hexagon — FSC 5310
  • Thread Class: 2B
  • Width Across Flats: 0.438 INCHES NOMINAL IN
  • Thread Direction: RIGHT-HAND
  • Thread Series: UN
  • Bearing Surface Type: WASHER FACED
  • Thread Quantity Per Inch: 28
  • Nominal Thread Size: 0.312 INCHES IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Copper Alloy Overall construction
General Description

The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-470-7561, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Teledyne Industries Inc Teledyne Power Systems Div. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-470-7561
Primary Part Number21247
Item NameNut,plain,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerTeledyne Industries Inc Teledyne Power Systems Div
StatusACTIVE
Thread Class2B
Width Across Flats0.438 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
Thread SeriesUN
Bearing Surface TypeWASHER FACED
Thread Quantity Per Inch28
Nominal Thread Size0.312 INCHES IN
MaterialCOPPER ALLOY OVERALL
Nut StyleHEXAGON
Nut Height0.380 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
4820-00-019-9611 INTERCHANGEABLE
Valve,safety Relief
5110-00-260-1645 INTERCHANGEABLE
Reamer,hand
6105-00-408-3397362570 INTERCHANGEABLE
Stator,motor
Eaton Aerospace, Llc Dba Jackson South
5930-00-560-3151 INTERCHANGEABLE
Switch,rotary
4010-00-960-4567 INTERCHANGEABLE
Chain,weldless
5355-00-990-8568507-2-2 INTERCHANGEABLE
Knob
Te Connectivity Corporation Dba Microdot Products
5331-01-123-2364 INTERCHANGEABLE
O-Ring
5330-01-166-366321247 INTERCHANGEABLE
Packing,preformed
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
4820-01-416-458121247-1000-1 INTERCHANGEABLE
Stem,fluid Valve
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
Cross-Reference Index
Part NumberManufacturer
21247 Teledyne Industries Inc Teledyne Power Systems Div (USA)
643967 Teledyne Industries Inc Teledyne Power Systems Div (USA)
Related Parts
4820-00-019-9611INTERCHANGEABLE
VALVE,SAFETY RELIEF
5110-00-260-1645INTERCHANGEABLE
REAMER,HAND
6105-00-408-3397INTERCHANGEABLE
STATOR,MOTOR
362570
5930-00-560-3151INTERCHANGEABLE
SWITCH,ROTARY
4010-00-960-4567INTERCHANGEABLE
CHAIN,WELDLESS
5355-00-990-8568INTERCHANGEABLE
KNOB
507-2-2
5331-01-123-2364INTERCHANGEABLE
O-RING
5330-01-166-3663INTERCHANGEABLE
PACKING,PREFORMED
21247
4820-01-416-4581INTERCHANGEABLE
STEM,FLUID VALVE
21247-1000-1

Frequently Asked Questions

What is NSN 5310-00-470-7561?

NSN 5310-00-470-7561 is a Nut,plain,hexagon, manufactured by Teledyne Industries Inc Teledyne Power Systems Div, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-470-7561?

NSN 5310-00-470-7561 has 2 cross-referenced part numbers: 21247 (Teledyne Industries Inc Teledyne Power Systems Div), 643967 (Teledyne Industries Inc Teledyne Power Systems Div).

What NSN replaces 5310-00-470-7561?

There are 9 known substitutes for 5310-00-470-7561: 4820-00-019-9611, 5110-00-260-1645, 6105-00-408-3397 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21247?

Key specifications for 21247: Thread Class: 2B; Width Across Flats: 0.438 INCHES NOMINAL IN; Thread Direction: RIGHT-HAND; Thread Series: UN. 10 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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