Fluid Passage Bolt P/N NAS551-4DH

Specifications

Concentric hole diameter

0.172 in (nominal)

First diameter from wrenching feature

0.435 in (nominal)

First end seat angle

45.0 ° (nominal)

Distance from first radial hole center to end of bolt

0.796 in (nominal)

First end thread series designator

UNF

Concentric hole depth

0.937 in (nominal)

Wrenching feature height

0.188 in (nominal)

First end thread quantity per inch

20

Length from bearing surface of wrenching feature to end of first diameter

0.781 in (nominal)

Material

Aluminum

Surface treatment

Anodize

Specification/standard data

Professional/industrial Association Standard 81343-AS4875 and Professional/industrial Association Standard 80205-NAS551

Overall length

1.375 in (nominal)

First end connection type

Threaded External Tube

First end thread class

3A

First end thread direction

Right-Hand

Special features

Drilled for Lockwire

Length from bearing surface of wrenching feature to bolt end

1.187 in (nominal)

First radial fluid hole diameter

0.172 in (nominal)

Width across flats

0.688 in (nominal)

First end thread length

0.406 in (nominal)

First end nominal thread size

Inches 0.437

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

Cross-reference part numbers

NAS551-4DH SAE-AS4875 AS4875 MIL-F-5509

Also referenced as

NAS551-4D

Older, superseded, advisory or drawing numbers the federal catalog associates with this NSN — the ones in an old manual.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	D DLA/GSA stocked — stocked by DLA or GSA and issued from central stock
Unit of issue	EA each
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 4730-00-720-0692?
NSN 4730-00-720-0692 (4730007200692) — Fluid Passage Bolt: SECO Parts has 8 in stock in Augusta, GA, on our own shelf. It is the NATO Stock Number for fluid passage bolt in federal supply class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings).

Is NSN 4730-00-720-0692 available?
SECO Parts has 8 in stock in Augusta, GA — order or request a quote below.

How much does NSN 4730-00-720-0692 cost?
SECO typically prices parts like NSN 4730-00-720-0692 at $25–$40 each: an estimate from the government catalog price and what SECO has charged for similar parts. It is not a quote — request one for your price, usually answered the same business day. Quote lines carry a $50 minimum.

What part numbers cross-reference to NSN 4730-00-720-0692?
Part numbers that cross-reference this NSN include NAS551-4DH, SAE-AS4875, AS4875, MIL-F-5509. It is also referenced by older, superseded or advisory numbers: NAS551-4D. SECO can quote against any of them.