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6549P — NUT,BEARING

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

6549P: NUT,BEARING.

The NUT,BEARING is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5310-00-398-8680, 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
6549P
NSN: 5310-00-398-8680
FSC: 5310 — Nuts and Washers
CAGE: 0UBG9 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION DIV EPD (USA)
SPECIFICATIONS
Part Number6549P
NSN5310-00-398-8680
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 6549P · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: STEEL,ROUND,CONE SHAPE,2.765X3.242 IN.DIA,STEP 2.765 IN.DIAX0.275 IN.LG,0.892 IN.O/A HEIGHT,1 1/4-1 UNF INTERNAL THD,2 HOLES0.275 IN.DIAX0.465 IN.DEEP 2.000 IN.DIA B/C 180 DEG APART,1 HOLE 1.025 IN.FROM CENTER 90 DEG FROM MTG HOLES,3/8-16 UNC,HEX SOCKET SETSCREW 7/8 IN.LG INCLUDED IN
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSTEEL,ROUND,CONE SHAPE,2.765X3.242 IN.DIA,STEP 2.765 IN.DIAX0.275 IN.LG,0.892 IN.O/A HEIGHT,1 1/4-1 UNF INTERNAL THD,2 HOLES0.275 IN.DIAX0.465 IN.DEEP 2.000 IN.DIA B/C 180 DEG APART,1 HOLE 1.025 IN.FROM CENTER 90 DEG FROM MTG HOLES,3/8-16 UNC,HEX SOCKET SETSCREW 7/8 IN.LG INCLUDED IN
SUBSTITUTES & CROSS-REFERENCES 8
254985Reference document
Same NSN cross-reference
Reference document — Secondary reference
SL5989PC132Reference document
Same NSN cross-reference
Reference document — Secondary reference
SL4923PC132Reference document
Same NSN cross-reference
Reference document — Secondary reference
SL4980PC132Reference document
Same NSN cross-reference
Reference document — Secondary reference
SL4985PC132Reference document
Same NSN cross-reference
Reference document — Secondary reference
SL6093PC132Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 6549P?
6549P is a NUT,BEARING.
What parts can replace 6549P?
There are 8 known substitutes for 6549P: 254985, SL5989PC132, SL4923PC132 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 6549P?
6549P is cataloged in the U.S. Government catalog under NSN 5310-00-398-8680. 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.