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Technical Data Sheet
7748 ✓ 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

The SUPPORT,REAR PANEL is a the manufacturer industrial component. Key specifications include material: PLASTIC CELLULOSE ACETATE BUTYRATE HANDLE, nut_style: ROUND, body_style: STRAIGHT HANDLE, body_length: 1.000 INCHES NOMINAL IN, finger_type: BANANA SPRING SINGLE FINGER, nut_diameter: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-090-4982, 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 7748
NSN: 5310-00-090-4982
FSC: 5310
CAGE: 23118 — SAC INDUSTRIES (USA)
SPECIFICATIONS
materialPLASTIC CELLULOSE ACETATE BUTYRATE HANDLE
nut_styleROUND
body_styleSTRAIGHT HANDLE
body_length1.000 INCHES NOMINAL IN
finger_typeBANANA SPRING SINGLE FINGER
nut_diameter0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
thread_class2B
finger_length0.562 INCHES NOMINAL SINGLE FINGER IN
nut_thickness0.126 INCHES MINIMUM AND 0.146 INCHES MAXIMUM IN
overall_width1.130 INCHES NOMINAL IN
terminal_typeTHREADED STUD SOLDER CUP
thread_seriesUNIFIED NATIONAL JOINT FINE (UNJF)
NSN5310-00-090-4982
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 7748 · 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
THREAD CLASS: 3B
NUT DIAMETER: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
THREAD QUANTITY PER INCH: 36
THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)
NOMINAL THREAD SIZE: 0.136 INCHES IN
HARDNESS RATING: 26.0 ROCKWELL C NOMINAL
WIDTH ACROSS FLATS: 0.334 INCHES MINIMUM AND 0.346 INCHES MAXIMUM IN
MATERIAL: IRON ALLOY 660 OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS3B
NUT DIAMETER0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
THREAD QUANTITY PER INCH36
THREAD SERIESUNIFIED NATIONAL JOINT FINE (UNJF)
NOMINAL THREAD SIZE0.136 INCHES IN
HARDNESS RATING26.0 ROCKWELL C NOMINAL
WIDTH ACROSS FLATS0.334 INCHES MINIMUM AND 0.346 INCHES MAXIMUM IN
MATERIALIRON ALLOY 660 OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
7748Interchangeable
interchangeable cross-reference
interchangeable
33-072Interchangeable
interchangeable cross-reference
interchangeable
7909439-1Interchangeable
interchangeable cross-reference
interchangeable
4350253-1Interchangeable
interchangeable cross-reference
interchangeable
10000032632Interchangeable
interchangeable cross-reference
interchangeable
8-27748Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 7748?
7748 is a SUPPORT,REAR PANEL. It is classified as a MRO (MRO_GENERAL).
What parts can replace 7748?
There are 7 known substitutes for 7748: 7748, 33-072, 7909439-1 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 7748?
7748 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-090-4982. This indicates validated use in U.S. government and defense supply chains.
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