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185299-61 — NUT,PLAIN,ROUND

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

185299-61: NUT,PLAIN,ROUND.

The NUT,PLAIN,ROUND is a the manufacturer industrial component. Key specifications include nut_style: ROUND, nut_diameter: 2.948 INCHES MINIMUM AND 2.978 INCHES MAXIMUM IN, nut_thickness: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN, thread_series: UNS, hardness_rating: 66.0 ROCKWELL B MINIMUM AND 92.0 ROCKWELL B MAXIMUM, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-185-6460, 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
185299-61
NSN: 5310-00-185-6460
FSC: 5310 — Nuts and Washers
CAGE: 30760 — INGERSOLL RAND CO (USA)
SPECIFICATIONS
nut_styleROUND
nut_diameter2.948 INCHES MINIMUM AND 2.978 INCHES MAXIMUM IN
nut_thickness0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
thread_seriesUNS
hardness_rating66.0 ROCKWELL B MINIMUM AND 92.0 ROCKWELL B MAXIMUM
thread_directionRIGHT-HAND
drive_point_depth0.125 INCHES NOMINAL IN
drive_point_width0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
nominal_thread_size2.157 INCHES IN
drive_point_quantity4
thread_pitch_diameters+2.1209 TO 2.1260 INCHES IN
thread_quantity_per_inch18
NSN5310-00-185-6460
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 185299-61 · 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 SERIES: UNS
•
HARDNESS RATING: 66.0 ROCKWELL B MINIMUM AND 92.0 ROCKWELL B MAXIMUM
•
THREAD PITCH DIAMETERS: +2.1209 TO 2.1260 INCHES IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD ALL MATERIAL RESPONSES OVERALL
•
DRIVE POINT WIDTH: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 2.157 INCHES IN
•
NUT DIAMETER: 2.948 INCHES MINIMUM AND 2.978 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
THREAD SERIESUNS
HARDNESS RATING66.0 ROCKWELL B MINIMUM AND 92.0 ROCKWELL B MAXIMUM
THREAD PITCH DIAMETERS+2.1209 TO 2.1260 INCHES IN
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OVERALL
DRIVE POINT WIDTH0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE2.157 INCHES IN
NUT DIAMETER2.948 INCHES MINIMUM AND 2.978 INCHES MAXIMUM IN
DRIVE POINT DEPTH0.125 INCHES NOMINAL IN
NUT THICKNESS0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 8
G9981PC80Reference document
Same NSN cross-reference
Reference document — Secondary reference
322660PC125Reference document
Same NSN cross-reference
Reference document — Secondary reference
N11Reference document
Same NSN cross-reference
Reference document — Secondary reference
SG2572PC93Reference document
Same NSN cross-reference
Reference document — Secondary reference
SG2861PC29Reference document
Same NSN cross-reference
Reference document — Secondary reference
SG2843PC29Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 185299-61?
185299-61 is a NUT,PLAIN,ROUND.
What parts can replace 185299-61?
There are 8 known substitutes for 185299-61: G9981PC80, 322660PC125, N11 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 185299-61?
185299-61 is cataloged in the U.S. Government catalog under NSN 5310-00-185-6460. This indicates validated use in U.S. government and defense supply chains.
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