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Technical Data Sheet
176507 ✓ 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 VALVE,FUEL PUMP is a the manufacturer industrial component. Key specifications include usage_design: REGULATOR,TEMPERATURE AND PRESSURE, thermostat_type: ANY ACCEPTABLE, capillary_tube_length: 2.0 INCHES MAXIMUM IN, valve_size_for_which_designed: 2.0 INCHES IN, spring_operated_pressure_relief: NOT PROVIDED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-083-2158, 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
176507
NSN: 5310-00-083-2158
FSC: 5310
CAGE: 71791 — CURTISS-WRIGHT CONTROLS, INC. DBA CURTISS WRIGHT DIV ACTUATION DIVISION (USA)
SPECIFICATIONS
usage_designREGULATOR,TEMPERATURE AND PRESSURE
thermostat_typeANY ACCEPTABLE
capillary_tube_length2.0 INCHES MAXIMUM IN
valve_size_for_which_designed2.0 INCHES IN
spring_operated_pressure_reliefNOT PROVIDED
NSN5310-00-083-2158
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 176507 · 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
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 6322 ASSN STD 1ST MATERIAL RESPONSE AND CPS 4528,FSCM 71791 MFR REF 2ND MATERIAL RESPONSE OVERALL
OVERALL DIAMETER: 1.220 INCHES NOMINAL IN
CENTER HOLE SHAPE STYLE: ROUND
PERIPHERAL SHAPE STYLE: ROUND
THICKNESS: 0.119 INCHES MINIMUM AND 0.121 INCHES MAXIMUM IN
HARDNESS RATING: 25.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6322 ASSN STD 1ST MATERIAL RESPONSE AND CPS 4528,FSCM 71791 MFR REF 2ND MATERIAL RESPONSE OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
OVERALL DIAMETER1.220 INCHES NOMINAL IN
CENTER HOLE SHAPE STYLEROUND
SPECIAL FEATURESCHAMFERED ON ONE OUTSIDE CORNER 0.050 IN. BY 45 DEG IN
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.119 INCHES MINIMUM AND 0.121 INCHES MAXIMUM IN
HARDNESS RATING25.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
HOLE DIAMETER0.730 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONCPS 6081 FSCM 71791 MFR REF SINGLE TREATMENT RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
20AInterchangeable
interchangeable cross-reference
interchangeable
513Interchangeable
interchangeable cross-reference
interchangeable
176507Interchangeable
interchangeable cross-reference
interchangeable
20739027Interchangeable
interchangeable cross-reference
interchangeable
20739010 REV D FN 4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 176507?
176507 is a VALVE,FUEL PUMP.
What parts can replace 176507?
There are 5 known substitutes for 176507: 20A, 513, 176507 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 176507?
176507 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-083-2158. This indicates validated use in U.S. government and defense supply chains.
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