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Technical Data Sheet
PartsTable / MRO / 65021-1
65021-1 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
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

DETECTING-RANGING SET SUBASSEMBL. Key specifications include material: STEEL OVERALL, nut_style: SLOTTED, HEXAGON, bore_shape: STRAIGHT, nut_height: 0.750 INCHES NOMINAL IN, bore_diameter: 17.00 MILLIMETERS NOMINAL MM, overall_width: 14.0 MILLIMETERS NOMINAL MM. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-145-1832, 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
MRO→ MRO_GENERAL→ 65021-1
NSN: 5310-00-145-1832
FSC: 5310
CAGE: 31577 — JAEGER MACHINE CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleSLOTTED, HEXAGON
bore_shapeSTRAIGHT
nut_height0.750 INCHES NOMINAL IN
bore_diameter17.00 MILLIMETERS NOMINAL MM
overall_width14.0 MILLIMETERS NOMINAL MM
thread_seriesUNS
load_directionRADIAL
overall_height0.413 INCHES MAXIMUM IN
overall_length12.790 INCHES MINIMUM AND 12.850 INCHES MAXIMUM IN
surface_finishGROUND
special_featuresCOMPONENT QUANTITY: 37; MOUNTING METHOD: CONNECTOR, RACK
NSN5310-00-145-1832
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 65021-1 · 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 STYLE: SLOTTED, HEXAGON
•
THREAD PITCH DIAMETERS: +1.6959 TO 1.7024 INCHES IN
•
THREAD SERIES: UNS
•
NOMINAL THREAD SIZE: 1.750 INCHES IN
•
BEARING SURFACE TYPE: WASHER FACED
•
THREAD QUANTITY PER INCH: 12
•
MATERIAL: STEEL OVERALL
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS (FLIS)
NUT STYLESLOTTED, HEXAGON
THREAD PITCH DIAMETERS+1.6959 TO 1.7024 INCHES IN
THREAD SERIESUNS
NOMINAL THREAD SIZE1.750 INCHES IN
BEARING SURFACE TYPEWASHER FACED
THREAD QUANTITY PER INCH12
MATERIALSTEEL OVERALL
THREAD DIRECTIONRIGHT-HAND
WIDTH ACROSS FLATS3.000 INCHES NOMINAL IN
NUT HEIGHT0.750 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
65021-1REVDInterchangeable
interchangeable cross-reference
interchangeable
65021-1Interchangeable
interchangeable cross-reference
interchangeable
303Interchangeable
interchangeable cross-reference
interchangeable
ND3303Interchangeable
interchangeable cross-reference
interchangeable
PP047BAZInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 65021-1?
65021-1 is a DETECTING-RANGING SET SUBASSEMBL. It is classified as a MRO (MRO_GENERAL).
What parts can replace 65021-1?
There are 5 known substitutes for 65021-1: 65021-1REVD, 65021-1, 303 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 65021-1?
65021-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-145-1832. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026