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PartsTable / COMPONENT / 124D87
124D87 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The NUT,SLEEVE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: SLEEVE, nut_length: 0.250 INCHES NOMINAL IN, nut_diameter: 0.688 INCHES NOMINAL IN, thread_series: UNS, hardness_rating: 20.0 ROCKWELL C MINIMUM AND 26.0 ROCKWELL C MAXIMUM. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-517-5193, 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
124D87
NSN: 5310-00-517-5193
FSC: 5310
CAGE: 0AHP5 — CURTISS-WRIGHT CONTROLS, INC. DIV ACTUATION DIVISION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleSLEEVE
nut_length0.250 INCHES NOMINAL IN
nut_diameter0.688 INCHES NOMINAL IN
thread_seriesUNS
hardness_rating20.0 ROCKWELL C MINIMUM AND 26.0 ROCKWELL C MAXIMUM
flange_thickness0.219 INCHES NOMINAL IN
thread_directionRIGHT-HAND
countersink_angle90.0 DEGREES NOMINAL NUT
features_providedCASEHARDENED
surface_treatmentZINC OVERALL
nominal_thread_size0.500 INCHES IN
NSN5310-00-517-5193
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 124D87 · 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
•
THREAD PITCH DIAMETERS: +0.4675 TO 0.4701 INCHES IN
•
FEATURES PROVIDED: CASEHARDENED
•
COUNTERSINK ANGLE: 90.0 DEGREES NOMINAL NUT
•
NUT LENGTH: 0.250 INCHES NOMINAL IN
•
DRILLED HOLE DIAMETER: 0.115 INCHES NOMINAL IN
•
NOMINAL THREAD SIZE: 0.500 INCHES IN
•
NUT DIAMETER: 0.688 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 6332 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
THREAD PITCH DIAMETERS+0.4675 TO 0.4701 INCHES IN
FEATURES PROVIDEDCASEHARDENED
COUNTERSINK ANGLE90.0 DEGREES NOMINAL NUT
NUT LENGTH0.250 INCHES NOMINAL IN
DRILLED HOLE DIAMETER0.115 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.500 INCHES IN
NUT DIAMETER0.688 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6332 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
SURFACE TREATMENTZINC OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
200215Interchangeable
interchangeable cross-reference
interchangeable
SMC43677Interchangeable
interchangeable cross-reference
interchangeable
3229-3001-5Interchangeable
interchangeable cross-reference
interchangeable
00021520Interchangeable
interchangeable cross-reference
interchangeable
400-173Interchangeable
interchangeable cross-reference
interchangeable
200214Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 124D87?
124D87 is a NUT,SLEEVE.
What parts can replace 124D87?
There are 9 known substitutes for 124D87: 200215, SMC43677, 3229-3001-5 and 6 more. Substitute compatibility should be verified for your specific system.
Is 124D87 still available?
124D87 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026