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PartsTable / COMPONENT / H547-1721-38
H547-1721-38 ✓ 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,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include end_item_identification: OPERATOR,LOT HATCH, criticality_code_justification: ZZZX, part_name_assigned_by_controlling_agency: (INAVY)NUT,SELF-LOCKING,HEX. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-540-9589, 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
H547-1721-38
NSN: 5310-01-540-9589
FSC: 5310
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
end_item_identificationOPERATOR,LOT HATCH
criticality_code_justificationZZZX
part_name_assigned_by_controlling_agency(INAVY)NUT,SELF-LOCKING,HEX
NSN5310-01-540-9589
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: H547-1721-38 · 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
•
DEPARTURE FROM CITED DESIGNATOR: MATERIAL CONTROLLED IAW SS800-AG-MAN-010/P-9290 SYSTEM CERTIFICATION PRODURES AND CRITERIA MANUAL FOR DEEP SUBMERGENCE SYSTEMS; CRITICAL ITEM FOR SAFETY AND SURVIVAL OF DEEP SUBMERGENCE RESEARCH AND RESCUE VEHICLES AS DIFFERENTIATED BY SPECIAL TEST FEATURES
•
CRITICALITY CODE JUSTIFICATION: ZZZX
TECHNICAL CHARACTERISTICS (FLIS)
DEPARTURE FROM CITED DESIGNATORMATERIAL CONTROLLED IAW SS800-AG-MAN-010/P-9290 SYSTEM CERTIFICATION PRODURES AND CRITERIA MANUAL FOR DEEP SUBMERGENCE SYSTEMS; CRITICAL ITEM FOR SAFETY AND SURVIVAL OF DEEP SUBMERGENCE RESEARCH AND RESCUE VEHICLES AS DIFFERENTIATED BY SPECIAL TEST FEATURES
PART NAME ASSIGNED BY CONTROLLING AGENCY(INAVY)NUT,SELF-LOCKING,HEX
CRITICALITY CODE JUSTIFICATIONZZZX
END ITEM IDENTIFICATIONOPERATOR,LOT HATCH
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
09NU-168Interchangeable
interchangeable cross-reference
interchangeable
09NU1608M0NELInterchangeable
interchangeable cross-reference
interchangeable
09NU-1608Interchangeable
interchangeable cross-reference
interchangeable
ESNA 09NU-168Interchangeable
interchangeable cross-reference
interchangeable
845-4687581 ITEM31L1Interchangeable
interchangeable cross-reference
interchangeable
100-4641848 ITEM3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is H547-1721-38?
H547-1721-38 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace H547-1721-38?
There are 20 known substitutes for H547-1721-38: 09NU-168, 09NU1608M0NEL, 09NU-1608 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for H547-1721-38?
H547-1721-38 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-540-9589. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026