PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 001-050367-004
001-050367-004 ✓ 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 color: SILVER OVERALL, material: STEEL COMP 316 OVERALL, thickness: 0.043 INCHES MINIMUM AND 0.057 INCHES MAXIMUM IN, hole_diameter: 0.401 INCHES MINIMUM AND 0.411 INCHES MAXIMUM IN, overall_diameter: 0.870 INCHES MINIMUM AND 0.880 INCHES MAXIMUM IN, peripheral_shape_style: ROUND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-618-2907, 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
001-050367-004
NSN: 5310-01-618-2907
FSC: 5310
CAGE: 02FP7 — INSITU, INC. (USA)
SPECIFICATIONS
colorSILVER OVERALL
materialSTEEL COMP 316 OVERALL
thickness0.043 INCHES MINIMUM AND 0.057 INCHES MAXIMUM IN
hole_diameter0.401 INCHES MINIMUM AND 0.411 INCHES MAXIMUM IN
overall_diameter0.870 INCHES MINIMUM AND 0.880 INCHES MAXIMUM IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
end_item_identification3990-01-588-3373
cross-sectional_shape_styleRECTANGULAR
part_name_assigned_by_controlling_agency3/8 316 STAINLESS STEEL SMALL OD FLAT WASHER
surface_treatment_document_and_classificationASTM A380 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
NSN5310-01-618-2907
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 001-050367-004 · 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: 0.870 INCHES MINIMUM AND 0.880 INCHES MAXIMUM IN
•
CENTER HOLE SHAPE STYLE: ROUND
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
HOLE DIAMETER: 0.401 INCHES MINIMUM AND 0.411 INCHES MAXIMUM IN
•
THICKNESS: 0.043 INCHES MINIMUM AND 0.057 INCHES MAXIMUM IN
•
PERIPHERAL SHAPE STYLE: ROUND
TECHNICAL CHARACTERISTICS (FLIS)
PART NAME ASSIGNED BY CONTROLLING AGENCY3/8 316 STAINLESS STEEL SMALL OD FLAT WASHER
OVERALL DIAMETER0.870 INCHES MINIMUM AND 0.880 INCHES MAXIMUM IN
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.401 INCHES MINIMUM AND 0.411 INCHES MAXIMUM IN
THICKNESS0.043 INCHES MINIMUM AND 0.057 INCHES MAXIMUM IN
PERIPHERAL SHAPE STYLEROUND
END ITEM IDENTIFICATION3990-01-588-3373
MATERIALSTEEL COMP 316 OVERALL
COLORSILVER OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
78017Interchangeable
interchangeable cross-reference
interchangeable
26045-1Interchangeable
interchangeable cross-reference
interchangeable
S25900REVCPC3Interchangeable
interchangeable cross-reference
interchangeable
D2910Interchangeable
interchangeable cross-reference
interchangeable
DH90351Interchangeable
interchangeable cross-reference
interchangeable
839198-0018Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy 001-050367-004?
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 001-050367-004?
001-050367-004 is a WASHER,FLAT.
What parts can replace 001-050367-004?
There are 15 known substitutes for 001-050367-004: 78017, 26045-1, S25900REVCPC3 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 001-050367-004?
001-050367-004 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-618-2907. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 001-050367-004

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026