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A532 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The TELETYPEWRITER SUBASSEMBLY is a the manufacturer industrial component. Key specifications include material: OIL LUBRICATING LUBRICATION, nut_style: CASTELLATED, HEXAGON, bore_shape: STRAIGHT, nut_height: 0.344 INCHES NOMINAL IN, corner_shape: SQUARE ALL CORNERS, thread_class: 3B. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-146-0785, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
A532
NSN: 5310-00-146-0785
FSC: 5310
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialOIL LUBRICATING LUBRICATION
nut_styleCASTELLATED, HEXAGON
bore_shapeSTRAIGHT
nut_height0.344 INCHES NOMINAL IN
corner_shapeSQUARE ALL CORNERS
thread_class3B
belt_quantity2
bore_diameter0.4365 INCHES MINIMUM AND 0.4375 INCHES MAXIMUM IN
hole_diameter0.188 INCHES MINIMUM AND 0.189 INCHES MAXIMUM IN
jack_quantity2
overall_depth3.750 INCHES NOMINAL IN
overall_width4.125 INCHES NOMINAL IN
NSN5310-00-146-0785
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: A532 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
NOMINAL THREAD SIZE: 0.438 INCHES IN
•
THREAD SERIES: UNF
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD QUANTITY PER INCH: 20
•
WIDTH ACROSS FLATS: 0.750 INCHES NOMINAL IN
•
THREAD CLASS: 3B
•
NUT STYLE: CASTELLATED, HEXAGON
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE0.438 INCHES IN
THREAD SERIESUNF
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH20
WIDTH ACROSS FLATS0.750 INCHES NOMINAL IN
THREAD CLASS3B
NUT STYLECASTELLATED, HEXAGON
MATERIALSTEEL OVERALL
BEARING SURFACE TYPEWASHER FACED
SURFACE TREATMENTCADMIUM OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
AX53-2Interchangeable
interchangeable cross-reference
interchangeable
AX53SET2Interchangeable
interchangeable cross-reference
interchangeable
2AX53Interchangeable
interchangeable cross-reference
interchangeable
45120Interchangeable
interchangeable cross-reference
interchangeable
A532Interchangeable
interchangeable cross-reference
interchangeable
7022390Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A532?
A532 is a TELETYPEWRITER SUBASSEMBLY.
What parts can replace A532?
There are 15 known substitutes for A532: AX53-2, AX53SET2, 2AX53 and 12 more. Substitute compatibility should be verified for your specific system.
Is A532 still available?
A532 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026