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162844 — CHAMBER,AIR BRAKE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

162844: CHAMBER,AIR BRAKE.

The CHAMBER,AIR BRAKE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 360 OVERALL, head_style: HEXAGON, head_height: 0.050 INCHES NOMINAL IN, thread_class: 3A A, thread_length: 0.077 INCHES MINIMUM AND 0.082 INCHES MAXIMUM IN, fastener_length: 0.254 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-911-3837, 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
162844
NSN: 5305-00-911-3837
NIINs: 009113837, 011548143
FSC: 5305 — Screws
CAGE: 04577 — MISSION SYSTEMS ORCHARD PARK INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY 360 OVERALL
head_styleHEXAGON
head_height0.050 INCHES NOMINAL IN
thread_class3A A
thread_length0.077 INCHES MINIMUM AND 0.082 INCHES MAXIMUM IN
fastener_length0.254 INCHES NOMINAL IN
thread_directionRIGHT-HAND
width_between_flats0.240 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
internal_drive_styleW/O INTERNAL DRIVE
nominal_thread_diameter0.138 INCHES IN
first_diameter_from_head0.240 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
third_diameter_from_head0.095 INCHES MINIMUM AND 0.105 INCHES MAXIMUM IN
NSN5305-00-911-3837
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 162844 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
HEAD HEIGHT: 0.050 INCHES NOMINAL IN
•
FASTENER LENGTH: 0.254 INCHES NOMINAL IN
•
THREAD LENGTH: 0.077 INCHES MINIMUM AND 0.082 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-B-611 1/4 HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
FIRST DIAMETER FROM HEAD: 0.240 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
•
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER: 0.103 INCHES MINIMUM AND 0.113 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.138 INCHES IN
•
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER: 0.135 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.050 INCHES NOMINAL IN
FASTENER LENGTH0.254 INCHES NOMINAL IN
THREAD LENGTH0.077 INCHES MINIMUM AND 0.082 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-611 1/4 HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL
FIRST DIAMETER FROM HEAD0.240 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER0.103 INCHES MINIMUM AND 0.113 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.138 INCHES IN
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER0.135 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
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 162844?
162844 is a CHAMBER,AIR BRAKE.
What is the NSN for 162844?
162844 is cataloged in the U.S. Government catalog under NSN 5305-00-911-3837. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.