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5190403 — PIN,STRAIGHT,HEADED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

5190403: PIN,STRAIGHT,HEADED.

The PIN,STRAIGHT,HEADED is a the manufacturer industrial component. Key specifications include height: 0.050 INCHES MINIMUM AND 0.050 INCHES MINIMUM AND 0.110 INCHES MAXIMUM0.110 INCHES MAXIMUM IN, diameter: 0.373 INCHES MINIMUM AND 0.373 INCHES MINIMUM AND 0.377 INCHES MAXIMUM0.377 INCHES MAXIMUM IN, end_radius: 0.030 INCHES NOMINAL0.030 INCHES NOMINAL IN, head_style: FLATFLAT, special_features: THREAD THRU HEAD 0.135 DIA,0.112; 40NC-2B,CSK 100 DEGREESTHREAD THRU HEAD 0.135 DIA,0.112; 40NC-2B,CSK 100 DEGREES, style_designator: STRAIGHTSTRAIGHT. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-185-6343, 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
5190403
NSN: 5310-00-185-6343
NIINs: 001856343, 013597033
FSC: 5310 — Nuts and Washers
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
height0.050 INCHES MINIMUM AND 0.050 INCHES MINIMUM AND 0.110 INCHES MAXIMUM0.110 INCHES MAXIMUM IN
diameter0.373 INCHES MINIMUM AND 0.373 INCHES MINIMUM AND 0.377 INCHES MAXIMUM0.377 INCHES MAXIMUM IN
end_radius0.030 INCHES NOMINAL0.030 INCHES NOMINAL IN
head_styleFLATFLAT
special_featuresTHREAD THRU HEAD 0.135 DIA,0.112; 40NC-2B,CSK 100 DEGREESTHREAD THRU HEAD 0.135 DIA,0.112; 40NC-2B,CSK 100 DEGREES
style_designatorSTRAIGHTSTRAIGHT
pin_head_diameter0.500 INCHES NOMINAL0.500 INCHES NOMINAL IN
under_head_length1.480 INCHES MINIMUM AND 1.480 INCHES MINIMUM AND 1.520 INCHES MAXIMUM1.520 INCHES MAXIMUM IN
NSN5310-00-185-6343
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 5190403 · 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: +2.7149 TO 2.7200 INCHES IN
•
DRIVE POINT WIDTH: 0.250 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 2.751 INCHES IN
•
NUT DIAMETER: 3.625 INCHES NOMINAL IN
•
DRIVE POINT DEPTH: 0.125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
THREAD SERIESUNS
HARDNESS RATING66.0 ROCKWELL B MINIMUM AND 92.0 ROCKWELL B MAXIMUM
THREAD PITCH DIAMETERS+2.7149 TO 2.7200 INCHES IN
DRIVE POINT WIDTH0.250 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE2.751 INCHES IN
NUT DIAMETER3.625 INCHES NOMINAL IN
DRIVE POINT DEPTH0.125 INCHES NOMINAL IN
NONDEFINITIVE SPEC/STD DATA1 TYPE AND 1 CLASS
NUT THICKNESS0.5625 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 9
62851Reference document
Same NSN cross-reference
Reference document — Secondary reference
HR20556Reference document
Same NSN cross-reference
Reference document — Secondary reference
DR2450PC9Reference document
Same NSN cross-reference
Reference document — Secondary reference
961A247-P14Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
17996PCM1039Reference document
Same NSN cross-reference
Reference document — Secondary reference
N14Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 5190403?
5190403 is a PIN,STRAIGHT,HEADED.
What parts can replace 5190403?
There are 9 known substitutes for 5190403: 62851, HR20556, DR2450PC9 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5190403?
5190403 is cataloged in the U.S. Government catalog under NSN 5310-00-185-6343. This indicates validated use in U.S. government and defense supply chains.
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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.