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01634-2 — NUT,SLEEVE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

01634-2: NUT,SLEEVE.

The NUT,SLEEVE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 905 OR COPPER ALLOY 903 OVERALL, nut_length: 3.656 INCHES NOMINAL IN, nut_diameter: 2.125 INCHES NOMINAL IN, thread_class: 2B, thread_length: 0.750 INCHES MINIMUM OVERALL IN, thread_series: UN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-038-4673, 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
01634-2
NSN: 5310-01-038-4673
FSC: 5310 — Nuts and Washers
CAGE: 14153 — DEFENSE LOGISTICS AGENCY DBA DEFENSE SUPPLY CENTER PHILADELPHIA (USA)
SPECIFICATIONS
materialCOPPER ALLOY 905 OR COPPER ALLOY 903 OVERALL
nut_length3.656 INCHES NOMINAL IN
nut_diameter2.125 INCHES NOMINAL IN
thread_class2B
thread_length0.750 INCHES MINIMUM OVERALL IN
thread_seriesUN
thread_directionLEFT-HAND
nominal_thread_size1.625 INCHES IN
cross-sectional_shapeROUND OVERALL
drilled_hole_diameter0.250 INCHES MINIMUM IN
hole_type_and_quantity2 DRILLED
hole_configuration_styleCONFIGURATION F
NSN5310-01-038-4673
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 01634-2 · 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
•
NUT LENGTH: 3.656 INCHES NOMINAL IN
•
THREAD SERIES: UN
•
THREAD LENGTH: 0.750 INCHES MINIMUM OVERALL IN
•
HOLE CONFIGURATION STYLE: CONFIGURATION F
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-C-390,TY 1,TY 2,OR TY 3 FED SPEC ALL MATERIAL RESPONSES OVERALL
•
THREAD DIRECTION: LEFT-HAND
•
NOMINAL THREAD SIZE: 1.625 INCHES IN
•
NUT DIAMETER: 2.125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
NUT LENGTH3.656 INCHES NOMINAL IN
THREAD SERIESUN
THREAD LENGTH0.750 INCHES MINIMUM OVERALL IN
HOLE CONFIGURATION STYLECONFIGURATION F
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-390,TY 1,TY 2,OR TY 3 FED SPEC ALL MATERIAL RESPONSES OVERALL
THREAD DIRECTIONLEFT-HAND
NOMINAL THREAD SIZE1.625 INCHES IN
NUT DIAMETER2.125 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPEROUND OVERALL
DRILLED HOLE DIAMETER0.250 INCHES MINIMUM IN
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 1
AYC-470LH-MReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 01634-2?
01634-2 is a NUT,SLEEVE.
What parts can replace 01634-2?
There is 1 known substitute for 01634-2: AYC-470LH-M. Substitute compatibility should be verified for your specific system.
What is the NSN for 01634-2?
01634-2 is cataloged in the U.S. Government catalog under NSN 5310-01-038-4673. 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.