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PartsTable / COMPONENT / 21849N-5PC88
21849N-5PC88 ✓ 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 WASHER,FLAT is a the manufacturer industrial component. Key specifications include peripheral_shape_style: ROUND, center_hole_shape_style: ROUND, end_item_identification: STEAM CONTROL VALVE, cross-sectional_shape_style: RECTANGULAR, part_name_assigned_by_controlling_agency: 3/8 PLAIN WASHER. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-530-0961, 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
21849N-5PC88
NSN: 5310-01-530-0961
FSC: 5310
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
peripheral_shape_styleROUND
center_hole_shape_styleROUND
end_item_identificationSTEAM CONTROL VALVE
cross-sectional_shape_styleRECTANGULAR
part_name_assigned_by_controlling_agency3/8 PLAIN WASHER
NSN5310-01-530-0961
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 21849N-5PC88 · 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
•
CENTER HOLE SHAPE STYLE: ROUND
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: ROUND
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
PERIPHERAL SHAPE STYLEROUND
PART NAME ASSIGNED BY CONTROLLING AGENCY3/8 PLAIN WASHER
END ITEM IDENTIFICATIONSTEAM CONTROL VALVE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
35BInterchangeable
interchangeable cross-reference
interchangeable
F1031Interchangeable
interchangeable cross-reference
interchangeable
38789Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21849N-5PC88?
21849N-5PC88 is a WASHER,FLAT.
What parts can replace 21849N-5PC88?
There are 3 known substitutes for 21849N-5PC88: 35B, F1031, 38789. Substitute compatibility should be verified for your specific system.
What is the NSN for 21849N-5PC88?
21849N-5PC88 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-530-0961. 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