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MS9549-14 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

MS9549-14: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, overall_diameter: 0.500 INCHES NOMINAL IN, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND, end_item_identification: MULTIFUNCTION MODULAR MAST CLOSURE DOOR SYSTEM ASSEMBLY AND INSTALLATION SSN 688-718, part_name_assigned_by_controlling_agency: (INAVY) FLAT WASHER. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-130-7670, 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
MS9549-14
NSN: 5310-00-130-7670
NIINs: 001307670, 015559372
FSC: 5310 — Nuts and Washers
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
overall_diameter0.500 INCHES NOMINAL IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
end_item_identificationMULTIFUNCTION MODULAR MAST CLOSURE DOOR SYSTEM ASSEMBLY AND INSTALLATION SSN 688-718
part_name_assigned_by_controlling_agency(INAVY) FLAT WASHER
NSN5310-00-130-7670
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MS9549-14 · 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 BOTTOM
•
OVERALL DIAMETER: 0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM IN
•
HEAT TREATMENT: AS FABRICATED
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: STEEL COMP 321 OVERALL
TECHNICAL CHARACTERISTICS
SURFACE FINISH63.0 MICROINCHES BOTTOM
SURFACE FINISH63.0 MICROINCHES TOP
OVERALL DIAMETER0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM IN
HEAT TREATMENTAS FABRICATED
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
PERIPHERAL SHAPE STYLEROUND
MATERIALSTEEL COMP 321 OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.521 INCHES MINIMUM AND 0.536 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 2
5310PL1332518Reference document
Same NSN cross-reference
Reference document — Informative reference only
5361662 ITEM 43Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MS9549-14?
MS9549-14 is a WASHER,FLAT.
What parts can replace MS9549-14?
There are 2 known substitutes for MS9549-14: 5310PL1332518, 5361662 ITEM 43. Substitute compatibility should be verified for your specific system.
What is the NSN for MS9549-14?
MS9549-14 is cataloged in the U.S. Government catalog under NSN 5310-00-130-7670. 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.