PartsTable
Technical Data Sheet
Download PDF

98370A037 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

98370A037: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, thickness: 0.156 INCHES NOMINAL IN, hole_diameter: 0.906 INCHES NOMINAL IN, hardness_rating: 70.0 ROCKWELL B NOMINAL, overall_diameter: 1.750 INCHES NOMINAL IN, peripheral_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-532-9131, 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
98370A037
NSN: 5310-01-532-9131
FSC: 5310 — Nuts and Washers
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
thickness0.156 INCHES NOMINAL IN
hole_diameter0.906 INCHES NOMINAL IN
hardness_rating70.0 ROCKWELL B NOMINAL
overall_diameter1.750 INCHES NOMINAL IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
end_item_identification3835-01-511-7335 4 INCH FUEL HANDLING HOSELINE OUTFIT (HLOF) IN
cross-sectional_shape_styleRECTANGULAR
part_name_assigned_by_controlling_agencyTHICK WASHER
NSN5310-01-532-9131
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 98370A037 · 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: 1.750 INCHES NOMINAL IN
•
HARDNESS RATING: 70.0 ROCKWELL B NOMINAL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
COLOR: NATURAL OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER1.750 INCHES NOMINAL IN
HARDNESS RATING70.0 ROCKWELL B NOMINAL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
COLORNATURAL OVERALL
PERIPHERAL SHAPE STYLEROUND
PART NAME ASSIGNED BY CONTROLLING AGENCYTHICK WASHER
END ITEM IDENTIFICATION3835-01-511-7335 4 INCH FUEL HANDLING HOSELINE OUTFIT (HLOF) IN
MATERIALSTEEL CORROSION RESISTING OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.906 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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy 98370A037?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 98370A037?
98370A037 is a WASHER,FLAT.
What is the NSN for 98370A037?
98370A037 is cataloged in the U.S. Government catalog under NSN 5310-01-532-9131. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 98370A037

✓ 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.