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550-3-04 — ANTENNA INVERTED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

550-3-04: ANTENNA INVERTED.

The ANTENNA INVERTED is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: CAP, nut_height: 12.0 MILLIMETERS NOMINAL MM, thread_class: 6H, special_features: ANTENNA INVERTED CONE, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-625-1980, 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
550-3-04
NSN: 5310-01-625-1980
NIINs: 016251980, 016266627
FSC: 5310 — Nuts and Washers
CAGE: 5PFF0 — HYDREMA U.S., INC. DBA HYDREMA US INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleCAP
nut_height12.0 MILLIMETERS NOMINAL MM
thread_class6H
thread_seriesM
special_featuresANTENNA INVERTED CONE
thread_directionRIGHT-HAND
surface_treatmentZINC OVERALL
width_across_flats10.0 MILLIMETERS NOMINAL MM
nominal_thread_size6.0 MILLIMETERS MM
bearing_surface_typeFLAT
end_item_identification2355-22-622-7966
NSN5310-01-625-1980
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 550-3-04 · 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
•
WIDTH ACROSS FLATS: 10.0 MILLIMETERS NOMINAL MM
•
THREAD SERIES: M
•
THREAD PITCH IN MILLIMETERS: 1.0
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 6.0 MILLIMETERS MM
•
NUT HEIGHT: 12.0 MILLIMETERS NOMINAL MM
•
SURFACE TREATMENT: ZINC OVERALL
•
NUT STYLE: CAP
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS10.0 MILLIMETERS NOMINAL MM
THREAD SERIESM
THREAD PITCH IN MILLIMETERS1.0
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE6.0 MILLIMETERS MM
NUT HEIGHT12.0 MILLIMETERS NOMINAL MM
SURFACE TREATMENTZINC OVERALL
NUT STYLECAP
THREAD CLASS6H
END ITEM IDENTIFICATION2355-22-622-7966
SUBSTITUTES & CROSS-REFERENCES 1
91880A045Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 550-3-04?
550-3-04 is a ANTENNA INVERTED.
What parts can replace 550-3-04?
There is 1 known substitute for 550-3-04: 91880A045. Substitute compatibility should be verified for your specific system.
What is the NSN for 550-3-04?
550-3-04 is cataloged in the U.S. Government catalog under NSN 5310-01-625-1980. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.