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211041883 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

211041883: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include thickness: 0.044 INCHES MINIMUM AND 0.048 INCHES MAXIMUM IN, hole_diameter: 0.530 INCHES NOMINAL IN, surface_finish: 63.0 MICROINCHES ALL SURFACES, overall_diameter: 1.125 INCHES MINIMUM AND 1.126 INCHES MAXIMUM IN, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-334-0878, 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
211041883
NSN: 5310-01-334-0878
FSC: 5310 — Nuts and Washers
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
thickness0.044 INCHES MINIMUM AND 0.048 INCHES MAXIMUM IN
hole_diameter0.530 INCHES NOMINAL IN
surface_finish63.0 MICROINCHES ALL SURFACES
overall_diameter1.125 INCHES MINIMUM AND 1.126 INCHES MAXIMUM IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
end_item_identificationBALL VALVE .25IPS
part_name_assigned_by_controlling_agencyNAVY SPECIAL PROJECT
reference_number_differentiating_characteristicsCLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
NSN5310-01-334-0878
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 211041883 · 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
•
SURFACE FINISH: 63.0 MICROINCHES ALL SURFACES
•
OVERALL DIAMETER: 1.125 INCHES MINIMUM AND 1.126 INCHES MAXIMUM IN
•
PERIPHERAL SHAPE STYLE: ROUND
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.530 INCHES NOMINAL IN
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
TECHNICAL CHARACTERISTICS
SURFACE FINISH63.0 MICROINCHES ALL SURFACES
OVERALL DIAMETER1.125 INCHES MINIMUM AND 1.126 INCHES MAXIMUM IN
PERIPHERAL SHAPE STYLEROUND
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
END ITEM IDENTIFICATIONBALL VALVE .25IPS
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.530 INCHES NOMINAL IN
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSCLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
THICKNESS0.044 INCHES MINIMUM AND 0.048 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 3
801-6405342 FIND 9Reference document
Same NSN cross-reference
Reference document — Secondary reference
211041883CPSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
801-6405342 FIND 9CPSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 211041883?
211041883 is a WASHER,FLAT.
What parts can replace 211041883?
There are 3 known substitutes for 211041883: 801-6405342 FIND 9, 211041883CP, 801-6405342 FIND 9CP. Substitute compatibility should be verified for your specific system.
What is the NSN for 211041883?
211041883 is cataloged in the U.S. Government catalog under NSN 5310-01-334-0878. 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.