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Technical Data Sheet
PartsTable / COMPONENT / A-1555
A-1555 ✓ 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 PLATE,RETAINING,SHAFT is a the manufacturer industrial component. Key specifications include shape: ROUND, material: MICA OVERALL, thickness: 0.636 INCHES NOMINAL IN, hole_diameter: 0.344 INCHES NOMINAL IN, overall_height: 0.031 INCHES NOMINAL IN, inside_diameter: 0.344 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-012-0393, 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
A-1555
NSN: 5310-00-012-0393
FSC: 5310
CAGE: 34623 — AM GENERAL LLC (USA)
SPECIFICATIONS
shapeROUND
materialMICA OVERALL
thickness0.636 INCHES NOMINAL IN
hole_diameter0.344 INCHES NOMINAL IN
overall_height0.031 INCHES NOMINAL IN
inside_diameter0.344 INCHES NOMINAL IN
outside_diameter0.750 INCHES NOMINAL IN
overall_diameter0.688 INCHES NOMINAL IN
special_featuresOCP, WITH BAGBY GREEN 67204 AND BLACK HAN 67138
style_designatorROUND, FLAT
aperture_diameter1.532 INCHES NOMINAL IN
attachment_methodHOOK FASTENER TAPE
NSN5310-00-012-0393
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: A-1555 · 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
•
OVERALL DIAMETER: 0.688 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-633 COMP FS1010 TO FS1020-CANCELED FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
NONDEFINITIVE SPEC/STD DATA: A TYPE
•
DEPARTURE FROM CITED DOCUMENT: AS MODIFIEDBY SURFACE FINISH
•
PERIPHERAL SHAPE STYLE: ROUND
•
CENTER HOLE SHAPE STYLE: ROUND
•
THICKNESS: 0.065 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM OR ZINC OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL DIAMETER0.688 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-633 COMP FS1010 TO FS1020-CANCELED FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NONDEFINITIVE SPEC/STD DATAA TYPE
DEPARTURE FROM CITED DOCUMENTAS MODIFIEDBY SURFACE FINISH
PERIPHERAL SHAPE STYLEROUND
CENTER HOLE SHAPE STYLEROUND
THICKNESS0.065 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.344 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
S37170Interchangeable
interchangeable cross-reference
interchangeable
P-8-60Interchangeable
interchangeable cross-reference
interchangeable
P8-C2-B60Interchangeable
interchangeable cross-reference
interchangeable
84001-1Interchangeable
interchangeable cross-reference
interchangeable
12387279-12Interchangeable
interchangeable cross-reference
interchangeable
V11-001-028Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A-1555?
A-1555 is a PLATE,RETAINING,SHAFT.
What parts can replace A-1555?
There are 26 known substitutes for A-1555: S37170, P-8-60, P8-C2-B60 and 23 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A-1555?
A-1555 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-012-0393. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026