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A51L21091-27 — BRACKET,DOUBLE ANGLE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

A51L21091-27: BRACKET,DOUBLE ANGLE.

The BRACKET,DOUBLE ANGLE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130, first_leg_angle: 90.0 DEGREES NOMINAL, first_leg_style: CORNER RADIUS, first_leg_length: 0.750 INCHES NOMINAL IN, second_leg_angle: 90.0 DEGREES NOMINAL, second_leg_style: CORNER RADIUS. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-239-5953, 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
A51L21091-27
NSN: 5340-01-239-5953
FSC: 5340 — Hardware, Commercial
CAGE: 79RG9 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialSTEEL COMP 4130
first_leg_angle90.0 DEGREES NOMINAL
first_leg_styleCORNER RADIUS
first_leg_length0.750 INCHES NOMINAL IN
second_leg_angle90.0 DEGREES NOMINAL
second_leg_styleCORNER RADIUS
special_featuresCOLOR WHITE
style_designatorDOUBLE ANGLE
second_leg_length0.750 INCHES NOMINAL IN
surface_treatmentENAMEL
mounting_hole_typePLAIN
first_leg_thickness0.040 INCHES NOMINAL IN
NSN5340-01-239-5953
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A51L21091-27 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
•
FIRST LEG HOLE DIAMETER: 0.190 INCHES MINIMUM AND 0.196 INCHES MAXIMUM IN
•
FIRST LEG ANGLE: 90.0 DEGREES NOMINAL
•
CENTER SECTION THICKNESS: 0.040 INCHES NOMINAL IN
•
SECOND LEG RELATIONSHIP TO FIRST LEG: NOT IDENTICAL
•
SECOND LEG ANGLE: 90.0 DEGREES NOMINAL
•
SECOND LEG HOLE DIAMETER: 0.257 INCHES MINIMUM AND 0.262 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: G+110AW09,CAGEC 26512 MFR REF SINGLE TREATMENT RESPONSE
•
SECOND LEG LENGTH: 0.750 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FIRST LEG HOLE DIAMETER0.190 INCHES MINIMUM AND 0.196 INCHES MAXIMUM IN
FIRST LEG ANGLE90.0 DEGREES NOMINAL
CENTER SECTION THICKNESS0.040 INCHES NOMINAL IN
SECOND LEG RELATIONSHIP TO FIRST LEGNOT IDENTICAL
SECOND LEG ANGLE90.0 DEGREES NOMINAL
SECOND LEG HOLE DIAMETER0.257 INCHES MINIMUM AND 0.262 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONG+110AW09,CAGEC 26512 MFR REF SINGLE TREATMENT RESPONSE
SECOND LEG LENGTH0.750 INCHES NOMINAL IN
FIRST LEG HOLE ARRANGEMENT STYLETWO HOLES
STYLE DESIGNATORDOUBLE ANGLE
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A51L21091-27?
A51L21091-27 is a BRACKET,DOUBLE ANGLE.
What is the NSN for A51L21091-27?
A51L21091-27 is cataloged in the U.S. Government catalog under NSN 5340-01-239-5953. This indicates validated use in U.S. government and defense supply chains.
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