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MRA5300-38PC28 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

MRA5300-38PC28: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include thickness: 0.312 INCHES NOMINAL IN, hole_diameter: 1.500 INCHES NOMINAL IN, overall_diameter: 2.125 INCHES NOMINAL IN, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND, cross-sectional_shape_style: RECTANGULAR. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-285-4272, 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
MRA5300-38PC28
NSN: 5310-00-285-4272
FSC: 5310 — Nuts and Washers
CAGE: 10855 — CARRIER CORP (USA)
SPECIFICATIONS
thickness0.312 INCHES NOMINAL IN
hole_diameter1.500 INCHES NOMINAL IN
overall_diameter2.125 INCHES NOMINAL IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN5310-00-285-4272
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MRA5300-38PC28 · 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: 2.125 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: ROUND
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 1.500 INCHES NOMINAL IN
•
THICKNESS: 0.312 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER2.125 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
PERIPHERAL SHAPE STYLEROUND
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER1.500 INCHES NOMINAL IN
THICKNESS0.312 INCHES NOMINAL IN
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES 10
0ME145-1PC37Reference document
Same NSN cross-reference
Reference document — Secondary reference
2MA313-1PC29Reference document
Same NSN cross-reference
Reference document — Secondary reference
2ME330-4PC29Reference document
Same NSN cross-reference
Reference document — Secondary reference
2ME365-4PC29Reference document
Same NSN cross-reference
Reference document — Secondary reference
0MEA142-1PC34Reference document
Same NSN cross-reference
Reference document — Secondary reference
3ME465-4PC29Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MRA5300-38PC28?
MRA5300-38PC28 is a WASHER,FLAT.
What parts can replace MRA5300-38PC28?
There are 10 known substitutes for MRA5300-38PC28: 0ME145-1PC37, 2MA313-1PC29, 2ME330-4PC29 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MRA5300-38PC28?
MRA5300-38PC28 is cataloged in the U.S. Government catalog under NSN 5310-00-285-4272. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.