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Technical Data Sheet
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126449 — SUPPORT,PWB

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

126449: SUPPORT,PWB.

The SUPPORT,PWB is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5340-01-099-1165, 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
126449
NSN: 5340-01-099-1165
NIINs: 010991165, 013268808
FSC: 5340 — Hardware, Commercial
CAGE: 10138 — ASTRONAUTICS CORPORATION OF AMERICA (USA)
SPECIFICATIONS
general_characteristics_item_descriptionAL ALY QQ-A-225/6 2024-T4; MIL-C-5541 CL3 CHEMICAL FILM; 2-56 UNC-2B BY 0.250 IN. MIN DEEP 2 HOLES; 0.750 IN.LG; 0.250 IN. WIDE; 0.250 IN. HIGH IN
NSN5340-01-099-1165
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 126449 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
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GENERAL CHARACTERISTICS ITEM DESCRIPTION: AL ALY QQ-A-225/6 2024-T4; MIL-C-5541 CL3 CHEMICAL FILM; 2-56 UNC-2B BY 0.250 IN. MIN DEEP 2 HOLES; 0.750 IN.LG; 0.250 IN. WIDE; 0.250 IN. HIGH IN
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONAL ALY QQ-A-225/6 2024-T4; MIL-C-5541 CL3 CHEMICAL FILM; 2-56 UNC-2B BY 0.250 IN. MIN DEEP 2 HOLES; 0.750 IN.LG; 0.250 IN. WIDE; 0.250 IN. HIGH IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 126449?
126449 is a SUPPORT,PWB.
What is the NSN for 126449?
126449 is cataloged in the U.S. Government catalog under NSN 5340-01-099-1165. This indicates validated use in U.S. government and defense supply chains.
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