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NAS1149B863H — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

NAS1149B863H: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 268 OR COPPER ALLOY 11 OVERALL, thickness: 0.053 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN, hole_diameter: 0.505 INCHES MINIMUM AND 0.525 INCHES MAXIMUM IN, overall_diameter: 0.870 INCHES MINIMUM AND 0.895 INCHES MAXIMUM IN, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-167-0706, 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
NAS1149B863H
NSN: 5310-00-167-0706
FSC: 5310 — Nuts and Washers
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
materialCOPPER ALLOY 268 OR COPPER ALLOY 11 OVERALL
thickness0.053 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
hole_diameter0.505 INCHES MINIMUM AND 0.525 INCHES MAXIMUM IN
overall_diameter0.870 INCHES MINIMUM AND 0.895 INCHES MAXIMUM IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationQQ-B-613 FED SPEC ALL MATERIAL RESPONSES OVERALL
NSN5310-00-167-0706
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: NAS1149B863H · 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 0.895 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-B-613 FED SPEC ALL MATERIAL RESPONSES OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: COPPER ALLOY 268 OR COPPER ALLOY 11 OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.505 INCHES MINIMUM AND 0.525 INCHES MAXIMUM IN
•
THICKNESS: 0.053 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER0.870 INCHES MINIMUM AND 0.895 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-613 FED SPEC ALL MATERIAL RESPONSES OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
PERIPHERAL SHAPE STYLEROUND
MATERIALCOPPER ALLOY 268 OR COPPER ALLOY 11 OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.505 INCHES MINIMUM AND 0.525 INCHES MAXIMUM IN
THICKNESS0.053 INCHES MINIMUM AND 0.073 INCHES MAXIMUM 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 8
122-2422410 PC 277Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
AN960B816Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
122-2422417 PC 277Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
122-2422395 PIECE 233Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
122-2422417 PC 233Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
5310001670706Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is NAS1149B863H?
NAS1149B863H is a WASHER,FLAT.
What parts can replace NAS1149B863H?
There are 8 known substitutes for NAS1149B863H: 122-2422410 PC 277, AN960B816, 122-2422417 PC 277 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for NAS1149B863H?
NAS1149B863H is cataloged in the U.S. Government catalog under NSN 5310-00-167-0706. 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.