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1127B1 — NUT,SLEEVE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

1127B1: NUT,SLEEVE.

The NUT,SLEEVE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, nut_style: SLEEVE, nut_length: 0.375 INCHES NOMINAL IN, nut_diameter: 0.495 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN, thread_class: 2B, thread_length: 0.281 INCHES NOMINAL OVERALL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-333-7526, 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
1127B1
NSN: 5310-00-333-7526
FSC: 5310 — Nuts and Washers
CAGE: 56442 — DIAMOND REO TRUCK CO (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
nut_styleSLEEVE
nut_length0.375 INCHES NOMINAL IN
nut_diameter0.495 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
thread_class2B
thread_length0.281 INCHES NOMINAL OVERALL IN
thread_seriesUNF
flange_diameter1.000 INCHES NOMINAL IN
flange_thickness0.062 INCHES NOMINAL IN
thread_directionRIGHT-HAND
nominal_thread_size0.190 INCHES IN
cross-sectional_shapeROUND FLANGE
NSN5310-00-333-7526
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1127B1 · 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 DIAMETER: 1.000 INCHES NOMINAL IN
•
NUT LENGTH: 0.375 INCHES NOMINAL IN
•
FLANGE THICKNESS: 0.062 INCHES NOMINAL IN
•
THREAD SERIES: UNF
•
THREAD LENGTH: 0.281 INCHES NOMINAL OVERALL IN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.190 INCHES IN
•
NUT DIAMETER: 0.495 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
FLANGE DIAMETER1.000 INCHES NOMINAL IN
NUT LENGTH0.375 INCHES NOMINAL IN
FLANGE THICKNESS0.062 INCHES NOMINAL IN
THREAD SERIESUNF
THREAD LENGTH0.281 INCHES NOMINAL OVERALL IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.190 INCHES IN
NUT DIAMETER0.495 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPEROUND 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
HRB305Reference document
Same NSN cross-reference
Reference document — Secondary reference
2301418Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
8329946Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1127B1?
1127B1 is a NUT,SLEEVE.
What parts can replace 1127B1?
There are 3 known substitutes for 1127B1: HRB305, 2301418, 8329946. Substitute compatibility should be verified for your specific system.
What is the NSN for 1127B1?
1127B1 is cataloged in the U.S. Government catalog under NSN 5310-00-333-7526. 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.