PartsTable
Technical Data Sheet
PR307-109 ✓ 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,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: HEXAGON, nut_height: 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNF, thread_direction: RIGHT-HAND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-721-7815, 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
PR307-109
NSN: 5310-00-721-7815
FSC: 5310
CAGE: 61081 — SCHROFF INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
nut_height0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNF
thread_directionRIGHT-HAND
countersink_angle100.0 DEGREES NOMINAL NUT
surface_treatmentCADMIUM OVERALL
width_across_flats0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
nominal_thread_size0.375 INCHES IN
bearing_surface_typeCHAMFERED
thread_quantity_per_inch24
NSN5310-00-721-7815
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: PR307-109 · 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
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 3,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
MATERIAL: STEEL OVERALL
BEARING SURFACE TYPE: CHAMFERED
SURFACE TREATMENT: CADMIUM OVERALL
NOMINAL THREAD SIZE: 0.375 INCHES IN
THREAD SERIES: UNF
THREAD QUANTITY PER INCH: 24
NUT HEIGHT: 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 3,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
MATERIALSTEEL OVERALL
BEARING SURFACE TYPECHAMFERED
SURFACE TREATMENTCADMIUM OVERALL
NOMINAL THREAD SIZE0.375 INCHES IN
THREAD SERIESUNF
THREAD QUANTITY PER INCH24
NUT HEIGHT0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
WIDTH ACROSS FLATS0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
113256Interchangeable
interchangeable cross-reference
interchangeable
21007Interchangeable
interchangeable cross-reference
interchangeable
Z99502Interchangeable
interchangeable cross-reference
interchangeable
12Z369-158Interchangeable
interchangeable cross-reference
interchangeable
11601752Interchangeable
interchangeable cross-reference
interchangeable
1B4110Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is PR307-109?
PR307-109 is a NUT,PLAIN,HEXAGON.
What parts can replace PR307-109?
There are 14 known substitutes for PR307-109: 113256, 21007, Z99502 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for PR307-109?
PR307-109 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-721-7815. This indicates validated use in U.S. government and defense supply chains.
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