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1669-88 — DUMMY LOAD,ELECTRICAL

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

1669-88: DUMMY LOAD,ELECTRICAL.

The DUMMY LOAD,ELECTRICAL is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: DOUBLE HEXAGON, body_width: 4.250 INCHES NOMINAL IN, body_height: 2.380 INCHES MAXIMUM IN, power_rating: 375.000 WATTS AVERAGE AND 300.000 KILOWATTS PEAK, thread_class: 3B. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-056-3336, 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
1669-88
NSN: 5310-00-056-3336
NIINs: 000563336, 012031186
FSC: 5310 — Nuts and Washers
CAGE: 13002 — GOODRICH CORPORATION DIV ADVANCED STRUCTURES LANDING SYSTEMS (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleDOUBLE HEXAGON
body_width4.250 INCHES NOMINAL IN
body_height2.380 INCHES MAXIMUM IN
power_rating375.000 WATTS AVERAGE AND 300.000 KILOWATTS PEAK
thread_class3B
thread_seriesUNF
cooling_methodSELF-COOLED
overall_height1.620 INCHES NOMINAL IN
overall_length9.780 INCHES NOMINAL IN
overall_diameter3.625 INCHES NOMINAL IN
style_designatorWAVEGUIDE MOUNTED
NSN5310-00-056-3336
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1669-88 · 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
•
WASHER OUTSIDE DIAMETER: 2.490 INCHES NOMINAL IN
•
WIDTH ACROSS FLATS: 1.808 INCHES NOMINAL IN
•
THREAD SERIES: UNF
•
WASHER THICKNESS: 0.375 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 1.500 INCHES IN
•
NUT STYLE: DOUBLE HEXAGON
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT1.620 INCHES NOMINAL IN
WASHER OUTSIDE DIAMETER2.490 INCHES NOMINAL IN
WIDTH ACROSS FLATS1.808 INCHES NOMINAL IN
THREAD SERIESUNF
WASHER THICKNESS0.375 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE1.500 INCHES IN
NUT STYLEDOUBLE HEXAGON
THREAD CLASS3B
THREAD QUANTITY PER INCH12
SUBSTITUTES & CROSS-REFERENCES 2
2571619Reference document
Same NSN cross-reference
Reference document — Secondary reference
53-41441-3Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
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 1669-88?
1669-88 is a DUMMY LOAD,ELECTRICAL.
What parts can replace 1669-88?
There are 2 known substitutes for 1669-88: 2571619, 53-41441-3. Substitute compatibility should be verified for your specific system.
What is the NSN for 1669-88?
1669-88 is cataloged in the U.S. Government catalog under NSN 5310-00-056-3336. 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.