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PartsTable / COMPONENT / 3371573
3371573 ✓ 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,KEY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1010 OR STEEL COMP 1035 OVERALL, hole_diameter: 1.583 INCHES MINIMUM AND 1.603 INCHES MAXIMUM IN, outside_diameter: 2.000 INCHES MINIMUM AND 2.030 INCHES MAXIMUM IN, style_designator: KEY, surface_treatment: CADMIUM AND CHROMATE OR ZINC AND CHROMATE OVERALL, material_thickness: 0.053 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-682-5444, 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
3371573
NSN: 5310-00-682-5444
FSC: 5310
CAGE: 35510 — PRESTOLITE ELECTRIC INC (USA)
SPECIFICATIONS
materialSTEEL COMP 1010 OR STEEL COMP 1035 OVERALL
hole_diameter1.583 INCHES MINIMUM AND 1.603 INCHES MAXIMUM IN
outside_diameter2.000 INCHES MINIMUM AND 2.030 INCHES MAXIMUM IN
style_designatorKEY
surface_treatmentCADMIUM AND CHROMATE OR ZINC AND CHROMATE OVERALL
material_thickness0.053 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN
external_key_quantity15
external_prebent_key_width0.204 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN
internal_prebent_key_width0.250 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN
internal_prebent_key_length0.094 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
overall_distance_including_keys2.469 INCHES MAXIMUM IN
material_document_and_classificationSAE ASSN STD ALL MATERIAL RESPONSES OVERALL
NSN5310-00-682-5444
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 3371573 · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD ALL MATERIAL RESPONSES OVERALL
•
STYLE DESIGNATOR: KEY
•
MATERIAL THICKNESS: 0.053 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN
•
HOLE DIAMETER: 1.583 INCHES MINIMUM AND 1.603 INCHES MAXIMUM IN
•
EXTERNAL KEY QUANTITY: 15
•
MATERIAL: STEEL COMP 1010 OR STEEL COMP 1035 OVERALL
•
SURFACE TREATMENT: CADMIUM AND CHROMATE OR ZINC AND CHROMATE OVERALL
•
EXTERNAL PREBENT KEY WIDTH: 0.204 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD ALL MATERIAL RESPONSES OVERALL
STYLE DESIGNATORKEY
MATERIAL THICKNESS0.053 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN
HOLE DIAMETER1.583 INCHES MINIMUM AND 1.603 INCHES MAXIMUM IN
EXTERNAL KEY QUANTITY15
MATERIALSTEEL COMP 1010 OR STEEL COMP 1035 OVERALL
SURFACE TREATMENTCADMIUM AND CHROMATE OR ZINC AND CHROMATE OVERALL
EXTERNAL PREBENT KEY WIDTH0.204 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN
END ITEM IDENTIFICATIONW/S:SUPPORT EQUIPMENT, C-17A AIRCRAFT; AIRCRAFT, B-2 BOMBER (ATB); ARMORED COMBAT EARTHMOVER (M9); WHIDBEY ISLAND CLASS LSD; OLIVER PERRY CLASS FFG; ARLEIGH BURKE CLASS DDG; AIRCRAFT, STRATOLIFTER C-135; GUN, 5-IN./54 CAL, MK-42 & 45; MK 28, 5-INCH 38 CALIBER TWIN GUN MOUNT; FIRE PUMPS A
INTERNAL PREBENT KEY WIDTH0.250 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
2001-4Interchangeable
interchangeable cross-reference
interchangeable
110 7/32Interchangeable
interchangeable cross-reference
interchangeable
B94.11MInterchangeable
interchangeable cross-reference
interchangeable
C12075Interchangeable
interchangeable cross-reference
interchangeable
407Interchangeable
interchangeable cross-reference
interchangeable
R18Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3371573?
3371573 is a WASHER,KEY.
What parts can replace 3371573?
There are 24 known substitutes for 3371573: 2001-4, 110 7/32, B94.11M and 21 more. Substitute compatibility should be verified for your specific system.
Is 3371573 still available?
3371573 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