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RY-166400 ITEM13 — SLEEVE ASSEMBLY,SHAFT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

RY-166400 ITEM13: SLEEVE ASSEMBLY,SHAFT.

The SLEEVE ASSEMBLY,SHAFT is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY NUT, nut_style: HEXAGON, nut_height: 1.130 INCHES MINIMUM AND 1.266 INCHES MAXIMUM IN, temp_rating: 250.0 FAHRENHEIT NOMINAL DEGF, thread_class: 3B, thread_series: UNIFIED NATIONAL COARSE (UNC). This part is cataloged in the U.S.

Government catalog under NSN 5310-01-043-6830, 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
RY-166400 ITEM13
NSN: 5310-01-043-6830
NIINs: 010436830, 010520367
FSC: 5310 — Nuts and Washers
CAGE: 93232 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION DBA CURTISS WRIGHT ENGINEERED PUMP DIVISION USE CAGE CODE 0UBG9 FOR CATALOGING (USA)
SPECIFICATIONS
materialNICKEL ALLOY NUT
nut_styleHEXAGON
nut_height1.130 INCHES MINIMUM AND 1.266 INCHES MAXIMUM IN
temp_rating250.0 FAHRENHEIT NOMINAL DEGF
thread_class3B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
locking_featurePREVAILING TORQUE WITH NONMETALLIC INSERT
thread_directionRIGHT-HAND
countersink_angle88.0 DEGREES NOMINAL NUT
width_across_flats1.614 INCHES MINIMUM AND 1.634 INCHES MAXIMUM IN
nominal_thread_size1.125 INCHES IN
bearing_surface_typeCHAMFERED OR WASHER FACED
NSN5310-01-043-6830
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: RY-166400 ITEM13 · 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
•
WIDTH ACROSS FLATS: 1.614 INCHES MINIMUM AND 1.634 INCHES MAXIMUM IN
•
BEARING SURFACE FINISH: 125.0 MICROINCHES
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
TEMP RATING: 250.0 FAHRENHEIT NOMINAL DEGF
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM D4066,COMP A,TYPE 1 ASSN STD SINGLE MATERIAL RESPONSE LOCKING INSERT
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 1.125 INCHES IN
•
LOCKING FEATURE: PREVAILING TORQUE WITH NONMETALLIC INSERT
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS1.614 INCHES MINIMUM AND 1.634 INCHES MAXIMUM IN
BEARING SURFACE FINISH125.0 MICROINCHES
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
TEMP RATING250.0 FAHRENHEIT NOMINAL DEGF
MATERIAL DOCUMENT AND CLASSIFICATIONASTM D4066,COMP A,TYPE 1 ASSN STD SINGLE MATERIAL RESPONSE LOCKING INSERT
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE1.125 INCHES IN
LOCKING FEATUREPREVAILING TORQUE WITH NONMETALLIC INSERT
NUT HEIGHT1.130 INCHES MINIMUM AND 1.266 INCHES MAXIMUM IN
COUNTERSINK ANGLE88.0 DEGREES NOMINAL NUT
SUBSTITUTES & CROSS-REFERENCES 9
203-5005087PC19/9764213Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
845-4558733 ITEM 29Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
167-7066805-27Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
122-6818783 PC 40Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
580-6641123-0500Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
09NE1807Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is RY-166400 ITEM13?
RY-166400 ITEM13 is a SLEEVE ASSEMBLY,SHAFT.
What parts can replace RY-166400 ITEM13?
There are 9 known substitutes for RY-166400 ITEM13: 203-5005087PC19/9764213, 845-4558733 ITEM 29, 167-7066805-27 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for RY-166400 ITEM13?
RY-166400 ITEM13 is cataloged in the U.S. Government catalog under NSN 5310-01-043-6830. 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.