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649A770 PIECE 1 — NUT,SLEEVE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

649A770 PIECE 1: NUT,SLEEVE.

The NUT,SLEEVE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1018 OVERALL, nut_style: SLEEVE, nut_length: 0.188 INCHES NOMINAL IN, nut_diameter: 0.656 INCHES NOMINAL IN, thread_class: 3B, thread_series: UNIFIED NATIONAL COARSE (UNC). This part is cataloged in the U.S.

Government catalog under NSN 5310-01-165-7569, 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
649A770 PIECE 1
NSN: 5310-01-165-7569
FSC: 5310 — Nuts and Washers
CAGE: 01289 — GENERAL ELECTRIC COMPANY (USA)
SPECIFICATIONS
materialSTEEL COMP 1018 OVERALL
nut_styleSLEEVE
nut_length0.188 INCHES NOMINAL IN
nut_diameter0.656 INCHES NOMINAL IN
thread_class3B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
flange_thickness0.188 INCHES NOMINAL IN
thread_directionRIGHT-HAND
nominal_thread_size0.250 INCHES IN
cross-sectional_shapeROUND NUT
thread_quantity_per_inch20
flange_width_across_flats1.000 INCHES NOMINAL IN
NSN5310-01-165-7569
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 649A770 PIECE 1 · 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
•
FLANGE WIDTH ACROSS FLATS: 1.000 INCHES NOMINAL IN
•
NUT LENGTH: 0.188 INCHES NOMINAL IN
•
FLANGE THICKNESS: 0.188 INCHES NOMINAL IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A108 ASSN STD SINGLE MATERIAL RESPONSE OR B4A2C,FSCM 01289 MFR REF SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.250 INCHES IN
•
NUT DIAMETER: 0.656 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FLANGE WIDTH ACROSS FLATS1.000 INCHES NOMINAL IN
NUT LENGTH0.188 INCHES NOMINAL IN
FLANGE THICKNESS0.188 INCHES NOMINAL IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A108 ASSN STD SINGLE MATERIAL RESPONSE OR B4A2C,FSCM 01289 MFR REF SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.250 INCHES IN
NUT DIAMETER0.656 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPEHEXAGONAL FLANGE
CROSS-SECTIONAL SHAPEROUND NUT
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 3
649A770-1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
PL-7378E65 PIECE 97Reference document
Same NSN cross-reference
Reference document — Secondary reference
649A770-001Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 649A770 PIECE 1?
649A770 PIECE 1 is a NUT,SLEEVE.
What parts can replace 649A770 PIECE 1?
There are 3 known substitutes for 649A770 PIECE 1: 649A770-1, PL-7378E65 PIECE 97, 649A770-001. Substitute compatibility should be verified for your specific system.
What is the NSN for 649A770 PIECE 1?
649A770 PIECE 1 is cataloged in the U.S. Government catalog under NSN 5310-01-165-7569. 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.