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Technical Data Sheet
PartsTable / COMPONENT / 31-3005-1
31-3005-1 ✓ 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

CAPACITOR,VARIABLE,AIR DIELECTRI. Key specifications include material: STEEL CORROSION RESISTING TUBING, wall_thickness: 0.020 INCHES NOMINAL IN, mating_end_quantity: 2 ALL ENDS, end_connection_style: SWIVEL NUT WITH COMPRESSION SLEEVE ALL ENDS, tube_outside_diameter: 0.625 INCHES NOMINAL IN, end_item_identification: B-52H. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-200-3646, 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
31-3005-1
NSN: 5315-00-200-3646
FSC: 5315
CAGE: 31361 — WOODWARD, INC. (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING TUBING
wall_thickness0.020 INCHES NOMINAL IN
special_featuresSTOCK LENGTH 33";BEND 1 28 11/16" FROM E END, 2.5" RADIUS, 150DEG BEND;BEND 2 14.5" FROM E END, 2,5" RADIUS, 90DEG BEND;BEND 3 8 1/8" FROM E END, 2.5" RADIUS, 67DEG BEND
mating_end_quantity2 ALL ENDS
end_connection_styleSWIVEL NUT WITH COMPRESSION SLEEVE ALL ENDS
tube_outside_diameter0.625 INCHES NOMINAL IN
end_item_identificationB-52H
part_name_assigned_by_controlling_agencyPANEL ASSY
NSN5315-00-200-3646
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 31-3005-1 · 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
•
PIN OVERALL LENGTH: 0.305 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
•
MATERIAL: STEEL COMP 440C OVERALL
•
FIRST END STYLE: SQUARE
•
PIN OVERALL DIAMETER: 0.0685 INCHES MINIMUM AND 0.0690 INCHES MAXIMUM IN
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5630 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
SURFACE FINISH: 32.0 MICROINCHES OUTSIDE DIAMETER
•
HARDNESS RATING: 42.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM OVERALL
TYPICAL APPLICATIONS
  • RAID cache protection during power loss events
  • Write-back cache enablement for storage controllers
  • Enterprise server data integrity assurance
  • Hot-swap battery/capacitor replacement in production
TECHNICAL CHARACTERISTICS (FLIS)
PIN OVERALL LENGTH0.305 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
MATERIALSTEEL COMP 440C OVERALL
FIRST END STYLESQUARE
PIN OVERALL DIAMETER0.0685 INCHES MINIMUM AND 0.0690 INCHES MAXIMUM IN
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5630 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE FINISH32.0 MICROINCHES OUTSIDE DIAMETER
HARDNESS RATING42.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
15431Interchangeable
interchangeable cross-reference
interchangeable
721058Interchangeable
interchangeable cross-reference
interchangeable
5007132Interchangeable
interchangeable cross-reference
interchangeable
31-3005-1Interchangeable
interchangeable cross-reference
interchangeable
7006737Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 31-3005-1?
31-3005-1 is a CAPACITOR,VARIABLE,AIR DIELECTRI.
What parts can replace 31-3005-1?
There are 5 known substitutes for 31-3005-1: 15431, 721058, 5007132 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 31-3005-1?
31-3005-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-200-3646. 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