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PartsTable / MRO / 220-021
220-021 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
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

FILTER,RADIO FREQUENCY INTERFERE. Key specifications include phase: THREE, body_width: 11.000 INCHES NOMINAL IN, body_height: 3.000 INCHES NOMINAL IN, body_length: 13.000 INCHES NOMINAL IN, current_type: AC, body_material: METAL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-087-7126, 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
MRO→ MRO_GENERAL→ 220-021
NSN: 5315-00-087-7126
FSC: 5315
CAGE: 81873 — WOODWARD HRT INC (USA)
SPECIFICATIONS
phaseTHREE
body_width11.000 INCHES NOMINAL IN
body_height3.000 INCHES NOMINAL IN
body_length13.000 INCHES NOMINAL IN
current_typeAC
body_materialMETAL
overall_width2.000 INCHES NOMINAL IN
terminal_typeWIRE LEADS
turn_quantity40 SINGLE COMPONENT SINGLE PRIMARY
cooling_methodSELF-COOLED
inclosure_typeFULLY INCLOSED
overall_height0.750 INCHES NOMINAL IN
NSN5315-00-087-7126
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 220-021 · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: OVERALL HEIGHT IS 4.820 IN. MAX,OVERALL WIDTH IS 2.900 IN MAX. IN
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONOVERALL HEIGHT IS 4.820 IN. MAX,OVERALL WIDTH IS 2.900 IN MAX. IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
220-02-1Interchangeable
interchangeable cross-reference
interchangeable
244-221Interchangeable
interchangeable cross-reference
interchangeable
RFI-857Interchangeable
interchangeable cross-reference
interchangeable
FL0-857Interchangeable
interchangeable cross-reference
interchangeable
100913Interchangeable
interchangeable cross-reference
interchangeable
9171473-26Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 220-021?
220-021 is a FILTER,RADIO FREQUENCY INTERFERE. It is classified as a MRO (MRO_GENERAL).
What parts can replace 220-021?
There are 6 known substitutes for 220-021: 220-02-1, 244-221, RFI-857 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 220-021?
220-021 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-087-7126. 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