PartsTable TECHNICAL DATA SHEET

JULY 2026Technical Data Sheet

A9531BKnob

Name: A9531B
SKU: 5355-00-935-7631

Kay Elemetrics Corporation · NSN 5355-00-935-7631 · FSC 5355 · No Item Name Available

Verified by PartsTable

NSN 5355-00-935-7631 — this item is cataloged by the U.S. Government under National Stock Number 5355-00-935-7631. Primary manufacturer part number: A9531B.

5355-00-935-7631 — No Item Name Available illustration

Features

Knob — FSC 5355
Screw Drive Type: HEXAGON SOCKET
Thread Quantity Per Inch: 32 SCREW HOLE
Style Designator: HEXAGON
Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SCREW HOLE
Material: ALUMINUM ALLOY
Nominal Thread Size: 0.138 INCHES SCREW HOLE IN
Color: BLACK

Applications

Applications requiring Aluminum Alloy construction

General Description

The Knob, cataloged under National Stock Number 5355-00-935-7631, is classified within Federal Supply Class 5355 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Kay Elemetrics Corporation. Government technical data includes 15 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	5355-00-935-7631
Primary Part Number	A9531B
Item Name	Knob
FSC / FSG	5355 / 53 — No Item Name Available
Manufacturer	Kay Elemetrics Corporation
Status	ACTIVE
Screw Drive Type	HEXAGON SOCKET
Thread Quantity Per Inch	32 SCREW HOLE
Style Designator	HEXAGON
Thread Series Designator	UNIFIED NATIONAL COARSE (UNC) SCREW HOLE
Material	ALUMINUM ALLOY
Nominal Thread Size	0.138 INCHES SCREW HOLE IN
Color	BLACK
Inside Diameter	0.501 INCHES NOMINAL IN
Attachment Method	SETSCREWS
Distance From Hole Center to Knob/skirt Base	0.218 INCHES NOMINAL IN
Overall Thickness	0.375 INCHES NOMINAL IN
Setscrew Hole Quantity	2
Shaft Accommodation Style	ROUND
Width Across Flats	2.000 INCHES NOMINAL IN
Gripping Surface Condition	SMOOTH

Lifecycle & Compliance

Acquisition Status	ACTIVE
HAZMAT	No

⇄ Verified Substitutes 12

1560-00-097-6749953-1 INTERCHANGEABLE

Ladder,rope,emergency

Ami Industries, Inc Div Utc Aerospace Systems

2920-00-603-72522067F2 INTERCHANGEABLE

Switch,lock,ignition

Oshkosh Defense Llc

3120-00-618-03189531 INTERCHANGEABLE

Bushing,sleeve

Master Machine Products Corp

2990-00-790-2644103605 INTERCHANGEABLE

Muffler,exhaust

Allianz Sweeper Company

5330-00-891-56699531 INTERCHANGEABLE

Seal,plain Encased

Blako Inc. Dba Blakeslee

5950-00-967-4562232211 INTERCHANGEABLE

Transformer,power

Woodward, Inc.

6145-01-115-32049531 INTERCHANGEABLE

Kit,wire,hookup

Belden Wire & Cable Company Llc Dba Belden Cdt Electronics Division

5310-01-199-33399531 INTERCHANGEABLE

Nut

Coffin Turbo Pump Inc

4820-01-199-66649531 INTERCHANGEABLE

Stem,fluid Valve

Cooper Interconnect, Inc. Dba Cooper Interconnect Div Interconnect

4820-01-304-28479531 INTERCHANGEABLE

Seat,valve

Tescom Corp Dba Tescom Div Tescom

Cross-Reference Index

Part Number	Manufacturer
A9531B	Kay Elemetrics Corporation (USA)
9531	Kay Elemetrics Corporation (USA)

Related Parts

1560-00-097-6749INTERCHANGEABLE

LADDER,ROPE,EMERGENCY

953-1

2920-00-603-7252INTERCHANGEABLE

SWITCH,LOCK,IGNITION

2067F2

3120-00-618-0318INTERCHANGEABLE

BUSHING,SLEEVE

9531

2990-00-790-2644INTERCHANGEABLE

MUFFLER,EXHAUST

103605

5330-00-891-5669INTERCHANGEABLE

SEAL,PLAIN ENCASED

9531

5950-00-967-4562INTERCHANGEABLE

TRANSFORMER,POWER

232211

6145-01-115-3204INTERCHANGEABLE

KIT,WIRE,HOOKUP

9531

5310-01-199-3339INTERCHANGEABLE

NUT

9531

4820-01-199-6664INTERCHANGEABLE

STEM,FLUID VALVE

9531

4820-01-304-2847INTERCHANGEABLE

SEAT,VALVE

9531

3040-01-411-3177INTERCHANGEABLE

WOBBLESHAFT ASSEMBLY

95-3-1

5310-01-420-3566INTERCHANGEABLE

NUT,PLAIN,CASTELLATED,HEXAGON

9531

Frequently Asked Questions

What is NSN 5355-00-935-7631?

NSN 5355-00-935-7631 is a Knob, manufactured by Kay Elemetrics Corporation, classified under FSC 5355 (No Item Name Available). Status: active.

What are the part numbers for NSN 5355-00-935-7631?

NSN 5355-00-935-7631 has 2 cross-referenced part numbers: A9531B (Kay Elemetrics Corporation), 9531 (Kay Elemetrics Corporation).

What NSN replaces 5355-00-935-7631?

There are 12 known substitutes for 5355-00-935-7631: 1560-00-097-6749, 2920-00-603-7252, 3120-00-618-0318 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A9531B?

Key specifications for A9531B: Screw Drive Type: HEXAGON SOCKET; Thread Quantity Per Inch: 32 SCREW HOLE; Style Designator: HEXAGON; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SCREW HOLE. 16 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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