Assembled Washer Bolt P/N BCYX8-451975

Specifications

Thread class

2A

Thread direction

Right-Hand

Thread length

0.608–0.719 in

Fastener length

0.719–0.750 in

Head height

0.208–0.230 in

Width between flats

0.489–0.500 in

Washer quantity

1

Nominal thread diameter

Inches 0.312

Thread quantity per inch

18

Primary washer outside diameter

0.540–0.556 in

Primary washer material thickness

0.078 in minimum

Special features

W/header Point

Material document and classification

Overall Fed STD All Material Responses 66

Thread series designator

Unified National Coarse (UNC)

From the federal catalog's item characteristics for this NSN. Confirm critical dimensions against your part or drawing before ordering.

Cross-reference part numbers

BCYX8-451975 5148436 05148436 189691 PC05148436

Also referenced as

BCYX8

Older, superseded, advisory or drawing numbers the federal catalog associates with this NSN — the ones in an old manual. They find the item; confirm the current part number when you order.

Shown for identification only. SECO can quote against any of these numbers.

Logistics data

Source of supply	SMS DLA Land and Maritime, Columbus, Ohio
Acquisition advice code	Z Insurance/numeric stockage objective — held by the government as insurance stock for contingencies, not for routine issue. SECO has 180 on the shelf
Unit of issue	HD hundred
Demilitarization code	A Demilitarization not required — non-munitions-list item
Controlled inventory code	U Unclassified
Hazardous material indicator	N No hazardous material

Source: public FLIS/PUB LOG cataloging data.

Why buy from SECO

These quantities sit on our own shelves — we are a stocking supplier, not a broker sourcing after you order. Condition-coded stock, formal quotes with NSN/PN on the paperwork, POs and GPC welcome, fast U.S. shipping.

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FAQ

What is NSN 5306-00-018-9691?
NSN 5306-00-018-9691 (5306000189691) — Assembled Washer Bolt: SECO Parts has 180 in stock in Augusta, GA, on our own shelf. It is the NATO Stock Number for assembled washer bolt in federal supply class 5306 (Bolts).

Is NSN 5306-00-018-9691 available?
SECO Parts has 180 in stock in Augusta, GA — order or request a quote below.

How much does NSN 5306-00-018-9691 cost?
SECO quotes NSN 5306-00-018-9691 on request, usually the same business day.

What part numbers cross-reference to NSN 5306-00-018-9691?
Part numbers that cross-reference this NSN include BCYX8-451975, 5148436, 05148436, 189691, PC05148436. It is also referenced by older, superseded or advisory numbers: BCYX8. SECO can quote against any of them.