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PartsTable / COMPONENT / 7449 ITEM 1
7449 ITEM 1 ✓ Verified by PartsTable
— · NUT WASHER
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 PIN,SPECIAL is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-01-043-6097, 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
7449 ITEM 1
NSN: 5315-01-043-6097
FSC: 5315
CAGE: 04953 — EDO AIL SYSTEMS INC (USA)
SPECIFICATIONS
general_characteristics_item_descriptionCRES,ASTM A582 TYPE 303,FINISH PASSIVATE PER MIL-F-14072 NO. E300,5.000 IN. O/A LG,1.749 IN. MIN TO 1.750 IN. MAX DIA,WITH 1/8 NPT ZIRC FITTING IN CENTER OF ONE END IN
NSN5315-01-043-6097
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 7449 ITEM 1 · 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: CRES,ASTM A582 TYPE 303,FINISH PASSIVATE PER MIL-F-14072 NO. E300,5.000 IN. O/A LG,1.749 IN. MIN TO 1.750 IN. MAX DIA,WITH 1/8 NPT ZIRC FITTING IN CENTER OF ONE END IN
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONCRES,ASTM A582 TYPE 303,FINISH PASSIVATE PER MIL-F-14072 NO. E300,5.000 IN. O/A LG,1.749 IN. MIN TO 1.750 IN. MAX DIA,WITH 1/8 NPT ZIRC FITTING IN CENTER OF ONE END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
74491Interchangeable
interchangeable cross-reference
interchangeable
7449Interchangeable
interchangeable cross-reference
interchangeable
PL7443PC3Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 7449 ITEM 1?
7449 ITEM 1 is a PIN,SPECIAL.
What parts can replace 7449 ITEM 1?
There are 3 known substitutes for 7449 ITEM 1: 74491, 7449, PL7443PC3. Substitute compatibility should be verified for your specific system.
What is the NSN for 7449 ITEM 1?
7449 ITEM 1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-01-043-6097. 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