PartsTable
Technical Data Sheet
D21061-27 ✓ 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,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1137 NUT, nut_style: HEXAGON, nut_height: 0.453 INCHES NOMINAL IN, temp_rating: 250.0 FAHRENHEIT NOMINAL DEGF, thread_class: 3B, thread_series: UNIFIED NATIONAL COARSE (UNC). This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-596-6897, 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
D21061-27
NSN: 5310-00-596-6897
FSC: 5310
CAGE: 07860 — BOGUE ELECTRIC MANUFACTURING CO (USA)
SPECIFICATIONS
materialSTEEL COMP 1137 NUT
nut_styleHEXAGON
nut_height0.453 INCHES NOMINAL IN
temp_rating250.0 FAHRENHEIT NOMINAL DEGF
thread_class3B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
locking_featurePREVAILING TORQUE WITH NONMETALLIC INSERT
thread_directionRIGHT-HAND
surface_treatmentCADMIUM NUT
width_across_flats0.563 INCHES NOMINAL IN
nominal_thread_size0.375 INCHES IN
bearing_surface_typeFLAT
NSN5310-00-596-6897
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: D21061-27 · 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 DIRECTION: RIGHT-HAND
NUT STYLE: HEXAGON
SURFACE TREATMENT: CADMIUM NUT
MATERIAL: PLASTIC POLYAMIDE NYLON LOCKING INSERT
NUT HEIGHT: 0.453 INCHES NOMINAL IN
NOMINAL THREAD SIZE: 0.375 INCHES IN
BEARING SURFACE TYPE: FLAT
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-633 CANC FED SPEC SINGLE MATERIAL RESPONSE NUT
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND
NUT STYLEHEXAGON
SURFACE TREATMENTCADMIUM NUT
MATERIALPLASTIC POLYAMIDE NYLON LOCKING INSERT
NUT HEIGHT0.453 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.375 INCHES IN
BEARING SURFACE TYPEFLAT
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-633 CANC FED SPEC SINGLE MATERIAL RESPONSE NUT
MATERIALSTEEL COMP 1137 NUT
WIDTH ACROSS FLATS0.563 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
10082384Interchangeable
interchangeable cross-reference
interchangeable
F52NE-066Interchangeable
interchangeable cross-reference
interchangeable
34015Interchangeable
interchangeable cross-reference
interchangeable
456004Interchangeable
interchangeable cross-reference
interchangeable
3834-4Interchangeable
interchangeable cross-reference
interchangeable
333-0439-00Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is D21061-27?
D21061-27 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace D21061-27?
There are 16 known substitutes for D21061-27: 10082384, F52NE-066, 34015 and 13 more. Substitute compatibility should be verified for your specific system.
Is D21061-27 still available?
D21061-27 is currently cancelled.
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