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540-9213-003 — STANDOFF,THREADED,SPACING

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

540-9213-003: STANDOFF,THREADED,SPACING.

The STANDOFF,THREADED,SPACING is a the manufacturer industrial component. Key specifications include length: 0.625 INCHES NOMINAL IN, material: ALUMINUM ALLOY 6061 OVERALL, special_features: THROUGH TAP FROM ONE LENGTH, surface_treatment: CHROMATE OVERALL, width_across_flats: 0.625 INCHES NOMINAL IN, cross-sectional_shape: HEXAGON. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-260-6881, 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
540-9213-003
NSN: 5310-00-260-6881
NIINs: 002606881, 010705201
FSC: 5310 — Nuts and Washers
CAGE: 13499 — ROCKWELL COLLINS, INC. DBA COLLINS AEROSPACE GOVERNMENT SYSTEMS DIV COLLINS AEROSPACE - GOVERNMENT SYSTEMS (USA)
SPECIFICATIONS
length0.625 INCHES NOMINAL IN
materialALUMINUM ALLOY 6061 OVERALL
special_featuresTHROUGH TAP FROM ONE LENGTH
surface_treatmentCHROMATE OVERALL
width_across_flats0.625 INCHES NOMINAL IN
cross-sectional_shapeHEXAGON
material_document_and_classificationQQ-A-200/8 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationMIL-C-5541, CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-00-260-6881
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 540-9213-003 · 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
•
WIDTH ACROSS FLATS: 0.250 INCHES NOMINAL IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
MATERIAL DOCUMENT AND CLASSIFICATION: ALLOY 53,FSCM 13499 MFR REF SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.138 INCHES IN
•
NUT HEIGHT: 0.188 INCHES NOMINAL IN
•
SURFACE TREATMENT: ANODIZE OVERALL
•
NUT STYLE: HEXAGON
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.250 INCHES NOMINAL IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
MATERIAL DOCUMENT AND CLASSIFICATIONALLOY 53,FSCM 13499 MFR REF SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.138 INCHES IN
NUT HEIGHT0.188 INCHES NOMINAL IN
SURFACE TREATMENTANODIZE OVERALL
NUT STYLEHEXAGON
THREAD CLASS2B
THREAD QUANTITY PER INCH32
SUBSTITUTES & CROSS-REFERENCES 1
500-2768-001Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 540-9213-003?
540-9213-003 is a STANDOFF,THREADED,SPACING.
What parts can replace 540-9213-003?
There is 1 known substitute for 540-9213-003: 500-2768-001. Substitute compatibility should be verified for your specific system.
What is the NSN for 540-9213-003?
540-9213-003 is cataloged in the U.S. Government catalog under NSN 5310-00-260-6881. 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.