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Technical Data Sheet
PartsTable / COMPONENT / 521694
521694 ✓ 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 MANIFOLD,FLUID,AIRCRAFT is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, connection_diameter: 0.937 INCHES MINIMUM AND 0.943 INCHES MAXIMUM IN, connection_quantity: 24, end_item_identification: J57 ENGINE, part_name_assigned_by_controlling_agency: MANIFOLD & NOZZLE-FUEL,RIGHT,ASSEMBLY OF. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-013-1074, 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
521694
NSN: 5310-00-013-1074
FSC: 5310
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
connection_diameter0.937 INCHES MINIMUM AND 0.943 INCHES MAXIMUM IN
connection_quantity24
end_item_identificationJ57 ENGINE
part_name_assigned_by_controlling_agencyMANIFOLD & NOZZLE-FUEL,RIGHT,ASSEMBLY OF
NSN5310-00-013-1074
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 521694 · 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: STEEL COMP 1060 OR STEEL COMP 1070 OR STEEL COMP 1078 OR STEEL COMP 1080 OVERALL
•
NONDEFINITIVE SPEC/STD DATA: A CLASS AND 2 STYLE
•
SURFACE TREATMENT: PHOSPHATE OVERALL
•
HARDNESS RATING: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
•
HOLE DIAMETER: 1.017 INCHES MINIMUM AND 1.053 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 1.672 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.250 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A576 ASSN STD ALL MATERIAL RESPONSES OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL COMP 1060 OR STEEL COMP 1070 OR STEEL COMP 1078 OR STEEL COMP 1080 OVERALL
NONDEFINITIVE SPEC/STD DATAA CLASS AND 2 STYLE
SURFACE TREATMENTPHOSPHATE OVERALL
HARDNESS RATING45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
HOLE DIAMETER1.017 INCHES MINIMUM AND 1.053 INCHES MAXIMUM IN
OUTSIDE DIAMETER1.672 INCHES MAXIMUM IN
MATERIAL THICKNESS0.250 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A576 ASSN STD ALL MATERIAL RESPONSES OVERALL
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
131228Interchangeable
interchangeable cross-reference
interchangeable
521694Interchangeable
interchangeable cross-reference
interchangeable
127316PC2Interchangeable
interchangeable cross-reference
interchangeable
D131074Interchangeable
interchangeable cross-reference
interchangeable
131074Interchangeable
interchangeable cross-reference
interchangeable
431818Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 521694?
521694 is a MANIFOLD,FLUID,AIRCRAFT.
What parts can replace 521694?
There are 11 known substitutes for 521694: 131228, 521694, 127316PC2 and 8 more. Substitute compatibility should be verified for your specific system.
Is 521694 still available?
521694 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026