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BLC16B21S — PIN,QUICK RELEASE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

BLC16B21S: PIN,QUICK RELEASE.

The PIN,QUICK RELEASE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 630 OR STEEL COMP 632 SHANK, grip_length: 2.100 INCHES MINIMUM AND 2.120 INCHES MAXIMUM IN, actuation_type: PUSH, shank_diameter: 0.9970 INCHES MINIMUM AND 0.9985 INCHES MAXIMUM IN, hardness_rating: 40.0 ROCKWELL C MINIMUM SPINDLE, actuation_method: PUSH BUTTON. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-019-9022, 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
BLC16B21S
NSN: 5315-01-019-9022
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 84256 — AVIBANK MFG., INC. DBA AVIBANK MANUFACTURING INC (USA)
SPECIFICATIONS
materialSTEEL COMP 630 OR STEEL COMP 632 SHANK
grip_length2.100 INCHES MINIMUM AND 2.120 INCHES MAXIMUM IN
actuation_typePUSH
shank_diameter0.9970 INCHES MINIMUM AND 0.9985 INCHES MAXIMUM IN
detent_quantity2
hardness_rating40.0 ROCKWELL C MINIMUM SPINDLE
actuation_methodPUSH BUTTON
style_designatorBUTTON
surface_treatmentPASSIVATE SHANK
pin_attachment_typeHOOK OR RING
button_handle_diameter2.120 INCHES MINIMUM AND 2.250 INCHES MAXIMUM IN
shoulder_to_head_end_distance2.140 INCHES MAXIMUM IN
NSN5315-01-019-9022
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: BLC16B21S · 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
•
SHANK DIAMETER: 0.9970 INCHES MINIMUM AND 0.9985 INCHES MAXIMUM IN
•
ACTUATION METHOD: PUSH BUTTON
•
DETENT TO TAPERED END DISTANCE: 0.860 INCHES MINIMUM AND 0.890 INCHES MAXIMUM IN
•
DETENT QUANTITY: 2
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE SHANK
•
BUTTON HANDLE DIAMETER: 2.120 INCHES MINIMUM AND 2.250 INCHES MAXIMUM IN
•
ACTUATION TYPE: PUSH
TECHNICAL CHARACTERISTICS
SHANK DIAMETER0.9970 INCHES MINIMUM AND 0.9985 INCHES MAXIMUM IN
ACTUATION METHODPUSH BUTTON
DETENT TO TAPERED END DISTANCE0.860 INCHES MINIMUM AND 0.890 INCHES MAXIMUM IN
DETENT QUANTITY2
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE SHANK
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE SPINDLE
BUTTON HANDLE DIAMETER2.120 INCHES MINIMUM AND 2.250 INCHES MAXIMUM IN
ACTUATION TYPEPUSH
HARDNESS RATING40.0 ROCKWELL C MINIMUM SPINDLE
HARDNESS RATING40.0 ROCKWELL C MINIMUM SHANK
OTHER ITEMS IN FSC 5315 — Nails, Machine Keys, and Pins
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5315-00-000-1037 5315-00-000-1067 5315-00-000-1245 5315-00-000-1372 5315-00-000-1412 5315-00-001-1571 5315-00-001-1572 5315-00-001-1602
SUBSTITUTES & CROSS-REFERENCES 4
SLC16AB21Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LG16CB2100Reference document
Same NSN cross-reference
Reference document — Secondary reference
LG16CB21MReference document
Same NSN cross-reference
Reference document — Secondary reference
MS17984C1621Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is BLC16B21S?
BLC16B21S is a PIN,QUICK RELEASE.
What parts can replace BLC16B21S?
There are 4 known substitutes for BLC16B21S: SLC16AB21, LG16CB2100, LG16CB21M and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for BLC16B21S?
BLC16B21S is cataloged in the U.S. Government catalog under NSN 5315-01-019-9022. 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.