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375881 — FLUSHING BLOCK,HYDRAULIC SYSTEM

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

375881: FLUSHING BLOCK,HYDRAULIC SYSTEM.

FLUSHING BLOCK,HYDRAULIC SYSTEM. Key specifications include material: STEEL COMP 1010 OVERALL, hole_diameter: 0.500 INCHES NOMINAL IN, outside_diameter: 1.405 INCHES MINIMUM AND 1.407 INCHES MAXIMUM IN, material_thickness: 0.047 INCHES NOMINAL IN, external_keyway_width: 0.187 INCHES NOMINAL IN, external_keyway_length: 0.093 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-359-1042, 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
375881
NSN: 5310-00-359-1042
NIINs: 003591042, 015918167
FSC: 5310 — Nuts and Washers
CAGE: 14892 — BENDIX CORP THE BRAKE AND STEERING DIV (USA)
SPECIFICATIONS
materialSTEEL COMP 1010 OVERALL
hole_diameter0.500 INCHES NOMINAL IN
outside_diameter1.405 INCHES MINIMUM AND 1.407 INCHES MAXIMUM IN
material_thickness0.047 INCHES NOMINAL IN
external_keyway_width0.187 INCHES NOMINAL IN
external_keyway_length0.093 INCHES NOMINAL IN
external_keyway_quantity3
material_document_and_classificationSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-359-1042
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 375881 · 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
•
EXTERNAL KEYWAY WIDTH: 0.187 INCHES NOMINAL IN
•
EXTERNAL KEYWAY QUANTITY: 3
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 1.405 INCHES MINIMUM AND 1.407 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.047 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 1010 OVERALL
•
HOLE DIAMETER: 0.500 INCHES NOMINAL IN
•
EXTERNAL KEYWAY LENGTH: 0.093 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
EXTERNAL KEYWAY WIDTH0.187 INCHES NOMINAL IN
EXTERNAL KEYWAY QUANTITY3
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER1.405 INCHES MINIMUM AND 1.407 INCHES MAXIMUM IN
MATERIAL THICKNESS0.047 INCHES NOMINAL IN
MATERIALSTEEL COMP 1010 OVERALL
HOLE DIAMETER0.500 INCHES NOMINAL IN
EXTERNAL KEYWAY LENGTH0.093 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
7376750Reference 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 375881?
375881 is a FLUSHING BLOCK,HYDRAULIC SYSTEM.
What parts can replace 375881?
There is 1 known substitute for 375881: 7376750. Substitute compatibility should be verified for your specific system.
What is the NSN for 375881?
375881 is cataloged in the U.S. Government catalog under NSN 5310-00-359-1042. 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.