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28-40079-7 — NUT,SLEEVE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

28-40079-7: NUT,SLEEVE.

The NUT,SLEEVE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 630 OVERALL, nut_length: 0.400 INCHES NOMINAL IN, nut_diameter: 1.000 INCHES NOMINAL IN, thread_class: 3B, thread_series: UNEF, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-241-7737, 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
28-40079-7
NSN: 5310-01-241-7737
FSC: 5310 — Nuts and Washers
CAGE: 70236 — TACTAIR FLUID CONTROLS INC (USA)
SPECIFICATIONS
materialSTEEL COMP 630 OVERALL
nut_length0.400 INCHES NOMINAL IN
nut_diameter1.000 INCHES NOMINAL IN
thread_class3B
thread_seriesUNEF
thread_directionRIGHT-HAND
nominal_thread_size0.530 INCHES IN
cross-sectional_shapeROUND W/WRENCH FLATS FLANGE
thread_quantity_per_inch24
flange_width_across_flats0.875 INCHES NOMINAL IN
material_document_and_classificationAMS5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-01-241-7737
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 28-40079-7 · 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: 0.875 INCHES NOMINAL IN
•
NUT LENGTH: 0.400 INCHES NOMINAL IN
•
THREAD SERIES: UNEF
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.530 INCHES IN
•
NUT DIAMETER: 1.000 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE: ROUND W/WRENCH FLATS FLANGE
TECHNICAL CHARACTERISTICS
FLANGE WIDTH ACROSS FLATS0.875 INCHES NOMINAL IN
NUT LENGTH0.400 INCHES NOMINAL IN
THREAD SERIESUNEF
MATERIAL DOCUMENT AND CLASSIFICATIONAMS5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.530 INCHES IN
NUT DIAMETER1.000 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPEROUND W/WRENCH FLATS FLANGE
THREAD CLASS3B
THREAD QUANTITY PER INCH24
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

No substitute or cross-reference records for this part.

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 28-40079-7?
28-40079-7 is a NUT,SLEEVE.
What is the NSN for 28-40079-7?
28-40079-7 is cataloged in the U.S. Government catalog under NSN 5310-01-241-7737. 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.