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656605 — HEATER,AIRCRAFT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

656605: HEATER,AIRCRAFT.

The HEATER,AIRCRAFT is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: ROUND, nut_diameter: 5.530 INCHES MINIMUM AND 5.550 INCHES MAXIMUM IN, thread_class: 3B, nut_thickness: 0.710 INCHES MINIMUM AND 0.730 INCHES MAXIMUM IN, thread_series: UNIFIED NATIONAL JOINT (UNJ). This part is cataloged in the U.S.

Government catalog under NSN 5310-01-162-0752, 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
656605
NSN: 5310-01-162-0752
NIINs: 011620752, 016757703
FSC: 5310 — Nuts and Washers
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleROUND
nut_diameter5.530 INCHES MINIMUM AND 5.550 INCHES MAXIMUM IN
thread_class3B
nut_thickness0.710 INCHES MINIMUM AND 0.730 INCHES MAXIMUM IN
thread_seriesUNIFIED NATIONAL JOINT (UNJ)
hardness_rating32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
thread_directionRIGHT-HAND
drive_point_depth0.150 INCHES NOMINAL IN
drive_point_width0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
surface_treatmentTIN OVERALL
small_end_diameter5.230 INCHES MINIMUM AND 5.250 INCHES MAXIMUM IN
NSN5310-01-162-0752
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 656605 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: AMS 2408 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
THREAD SERIES: UNIFIED NATIONAL JOINT (UNJ)
•
HARDNESS RATING: 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
•
HOLE CONFIGURATION STYLE: CONFIGURATION F
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 6323 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
DRIVE POINT WIDTH: 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 5.000 INCHES IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS 2408 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIESUNIFIED NATIONAL JOINT (UNJ)
HARDNESS RATING32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
HOLE CONFIGURATION STYLECONFIGURATION F
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 6323 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
DRIVE POINT WIDTH0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE5.000 INCHES IN
NUT DIAMETER5.530 INCHES MINIMUM AND 5.550 INCHES MAXIMUM IN
DRIVE POINT DEPTH0.150 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 656605?
656605 is a HEATER,AIRCRAFT.
What is the NSN for 656605?
656605 is cataloged in the U.S. Government catalog under NSN 5310-01-162-0752. This indicates validated use in U.S. government and defense supply chains.
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