PartsTable
Technical Data Sheet
Download PDF

43A10577 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

43A10577: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1005 OR STEEL COMP 1006 OR STEEL COMP 1008 OVERALL, hole_diameter: 0.989 INCHES MINIMUM AND 1.009 INCHES MAXIMUM IN, hardness_rating: 50.0 ROCKWELL B MINIMUM AND 81.0 ROCKWELL B MAXIMUM, outside_diameter: 1.281 INCHES MINIMUM AND 1.296 INCHES MAXIMUM IN, style_designator: KEY, material_thickness: 0.046 INCHES MINIMUM AND 0.054 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-186-0964, 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
43A10577
NSN: 5310-00-186-0964
NIINs: 001860964, 010999435
FSC: 5310 — Nuts and Washers
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialSTEEL COMP 1005 OR STEEL COMP 1006 OR STEEL COMP 1008 OVERALL
hole_diameter0.989 INCHES MINIMUM AND 1.009 INCHES MAXIMUM IN
hardness_rating50.0 ROCKWELL B MINIMUM AND 81.0 ROCKWELL B MAXIMUM
outside_diameter1.281 INCHES MINIMUM AND 1.296 INCHES MAXIMUM IN
style_designatorKEY
material_thickness0.046 INCHES MINIMUM AND 0.054 INCHES MAXIMUM IN
external_key_quantity13
external_prebent_key_width0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN
internal_prebent_key_width0.156 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN
internal_prebent_key_length0.094 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
overall_distance_including_keys1.719 INCHES MAXIMUM IN
material_document_and_classificationAISI ASSN STD ALL MATERIAL RESPONSES OR SAE ASSN STD 2ND MATERIAL RESPONSE OR SAE ASSN STD 3RD MATERIAL RESPONSE OVERALL
NSN5310-00-186-0964
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 43A10577 · 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
•
INTERNAL PREBENT KEY WIDTH: 0.156 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN
•
OVERALL DISTANCE INCLUDING KEYS: 1.719 INCHES MAXIMUM IN
•
HARDNESS RATING: 50.0 ROCKWELL B MINIMUM AND 81.0 ROCKWELL B MAXIMUM
•
STYLE DESIGNATOR: KEY
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI ASSN STD ALL MATERIAL RESPONSES OR SAE ASSN STD 2ND MATERIAL RESPONSE OR SAE ASSN STD 3RD MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 1.281 INCHES MINIMUM AND 1.296 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.046 INCHES MINIMUM AND 0.054 INCHES MAXIMUM IN
•
EXTERNAL KEY QUANTITY: 13
TECHNICAL CHARACTERISTICS
INTERNAL PREBENT KEY WIDTH0.156 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN
OVERALL DISTANCE INCLUDING KEYS1.719 INCHES MAXIMUM IN
HARDNESS RATING50.0 ROCKWELL B MINIMUM AND 81.0 ROCKWELL B MAXIMUM
STYLE DESIGNATORKEY
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD ALL MATERIAL RESPONSES OR SAE ASSN STD 2ND MATERIAL RESPONSE OR SAE ASSN STD 3RD MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER1.281 INCHES MINIMUM AND 1.296 INCHES MAXIMUM IN
MATERIAL THICKNESS0.046 INCHES MINIMUM AND 0.054 INCHES MAXIMUM IN
EXTERNAL KEY QUANTITY13
INTERNAL PREBENT KEY LENGTH0.094 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
EXTERNAL PREBENT KEY WIDTH0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 10
107372PC406Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
107266PC375Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
60217BPC335Reference document
Same NSN cross-reference
Reference document — Secondary reference
DC69147WAMPC335Reference document
Same NSN cross-reference
Reference document — Secondary reference
NFK2601MARPC13Reference document
Same NSN cross-reference
Reference document — Secondary reference
SL4909PC58Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
Ready to buy 43A10577?
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 43A10577?
43A10577 is a WASHER,KEY.
What parts can replace 43A10577?
There are 10 known substitutes for 43A10577: 107372PC406, 107266PC375, 60217BPC335 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 43A10577?
43A10577 is cataloged in the U.S. Government catalog under NSN 5310-00-186-0964. 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 — 43A10577

✓ 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.